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tfl.gov.uk

tfl.gov.uk is SSL secured

Free website and domain report on tfl.gov.uk

Last Updated: 27th June, 2022 Update Now
Overview

Snoop Summary for tfl.gov.uk

This is a free and comprehensive report about tfl.gov.uk. Tfl.gov.uk is hosted in United States on a server with an IP address of 104.16.101.13, where USD is the local currency and the local language is English. Our records indicate that tfl.gov.uk is owned/operated by UK Cabinet Office. Tfl.gov.uk is expected to earn an estimated $2,200 USD per day from advertising revenue. The sale of tfl.gov.uk would possibly be worth $1,606,299 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Tfl.gov.uk receives an estimated 350,665 unique visitors every day - an insane amount of traffic! This report was last updated 27th June, 2022.

About tfl.gov.uk

Site Preview: tfl.gov.uk tfl.gov.uk
Title: Transport for London
Description: Information on all forms of transport in London including cycle hire. Routes, maps, plan a journey, tickets sales, realtime traffic and travel updates.
Keywords and Tags: government, lez, london subway map, london tube, london tube map, london underground, london underground map, london victoria coach station, maps, military, oyster card, oyster card london, plan a journey, popular, public information, realtime traffic, routes, tfl, the tube, ticket sales, transport for london, travel updates, tube, tube map, visitor oyster card
Related Terms:
Fav Icon:
Age: Over 27 years old
Domain Created: 31st July, 1996
Domain Updated:
Domain Expires:
Review

Snoop Score

4/5 (Excellent!)

Valuation

$1,606,299 USD
Note: All valuation figures are estimates.

Popularity

Very High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 5,107
Alexa Reach:
SEMrush Rank (US): 8,328
SEMrush Authority Score: 76
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Organic Paid
Keywords: 116,290 2
Traffic: 340,367 3
Cost: $170,234 USD $0 USD
Traffic

Visitors

Daily Visitors: 350,665
Monthly Visitors: 10,673,138
Yearly Visitors: 127,992,725
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $2,200 USD
Monthly Revenue: $66,973 USD
Yearly Revenue: $803,145 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Backlinks: 7,519,642
Referring Domains: 50,524
Referring IPs: 45,893
Tfl.gov.uk has 7,519,642 backlinks according to SEMrush. 92% of these backlinks are "dofollow" (follow) links which allow the flow of link equity to pass through, which may improve tfl.gov.uk's search engine rankings. Other links are treated as 'hints' by search engines and may also pass link equity, depending on what search engines decide in each case.
99% of tfl.gov.uk's backlinks are text and image links, which are ideal for SEO. Other backlink types may be unrecognized or ignored by search engines.

Top New Follow Links

1
Source: https://www.nationalrail.co.uk/service_disruptions/today.aspx
Target: https://tfl.gov.uk/
2
Source: https://www.nationalrail.co.uk/service_disruptions/today.aspx
Target: https://tfl.gov.uk/tube-dlr-overground/status/?dateTypeSelect=This%20weekend&endDate=2020-02-23T23%3A59%3A59&startDate=2020-02-22T00%3A00%3A00
3
Source: https://www.nationalrail.co.uk/service_disruptions/today.aspx
Target: https://tfl.gov.uk/modes/tube/
4
Source: https://www.nationalrail.co.uk/service_disruptions/today.aspx
Target: https://tfl.gov.uk/modes/tube/
5
Source: https://www.thameslinkrailway.com/travel-information/plan-your-journey/service-updates
Target: https://tfl.gov.uk/plan-a-journey/

Top Ranking Keywords (US)

1
Keyword: london tube map
Ranked Page: https://tfl.gov.uk/maps/track/tube
2
Keyword: london underground map
Ranked Page: https://tfl.gov.uk/maps/track/tube
3
Keyword: london underground
Ranked Page: https://tfl.gov.uk/modes/tube/
4
Keyword: tfl
Ranked Page: https://tfl.gov.uk/
5
Keyword: the tube
Ranked Page: https://tfl.gov.uk/modes/tube/

Domain Analysis

Value Length
Domain: tfl.gov.uk 10
Domain Name: tfl 3
Extension (TLD): govuk 5

Page Speed Analysis

Average Load Time: 1.01 seconds
Load Time Comparison: Faster than 78% of sites

PageSpeed Insights

Avg. (All Categories) 72
Performance 83
Accessibility 84
Best Practices 83
SEO 75
PWA 33
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://tfl.gov.uk/
Updated: 27th June, 2022

0.61 seconds
First Contentful Paint (FCP)
96%
2%
2%

0.01 seconds
First Input Delay (FID)
94%
3%
3%

Simulate loading on desktop
83

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for tfl.gov.uk. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.6 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 2.4 s
The time taken for the page to become fully interactive.
Total Blocking Time — 70 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.017
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

First Meaningful Paint — 0.8 s
The time taken for the primary content of the page to be rendered.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://tfl.gov.uk/
http/1.1
0
107.65499994159
353
0
301
text/plain
https://tfl.gov.uk/
h2
108.06999995839
706.24899992254
22283
132646
200
text/html
Document
https://tfl.gov.uk/cdn-cgi/apps/head/rSUs7emVimrui1kJk7ctnzLrlfo.js
h2
715.37699992768
787.25499997381
2271
4686
200
application/javascript
Script
https://consent.cookiebot.com/uc.js
h2
715.63799993601
745.00399990939
30525
98470
200
application/javascript
Script
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
h2
835.55399999022
858.88499999419
52410
178374
200
application/x-javascript
Script
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
h2
715.92200000305
804.4579999987
54759
424644
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/modules.min.04f99c82.css
h2
716.1629999755
820.6759999739
47279
302526
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
h2
716.60499996506
812.70199990831
55496
374049
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/medium.min.11444b05.css
h2
716.84499992989
782.14499994647
13137
71192
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/large.min.59f47210.css
h2
717.06599998288
813.65899997763
8146
41614
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
h2
846.86399996281
890.78299992252
48106
116841
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts/plugins/smart-banner/smartbanner.js
h2
847.0489999745
883.00899998285
5049
14934
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/images/MoL-small.png
h2
847.16499992646
883.62199999392
2156
1371
200
image/png
Image
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp_rdax_400x200.png
h2
847.39199990872
898.01199990325
21617
20685
200
image/png
Image
https://tfl.gov.uk/cdn/static/cms/images/promos/traveltools_rdax_400x200.jpg
h2
847.56899997592
889.63799993508
24739
23804
200
image/jpeg
Image
https://tfl.gov.uk/static/cms/images/MoL.png
h2
847.91199991014
942.13499990292
2503
1714
200
image/png
Image
https://tfl.gov.uk/static/cms/images/GLA_Logo.png
h2
848.06999994908
890.02599997912
3375
2595
200
image/png
Image
https://tfl.gov.uk/cdn/static/scripts/core/min/init.min.94a51acf.js
h2
832.84299995285
878.17699997686
11293
37640
200
text/javascript
Script
https://tfl.gov.uk/cdn-cgi/apps/body/WpKF0Tdo9EZZ1RX5MARAhGi2xsM.js
h2
848.29699993134
948.27799999621
3883
8664
200
application/javascript
Script
https://tfl.gov.uk/cdn/static/styles/core/min/print.min.0a482449.css
h2
848.41399989091
902.7739999583
2508
8514
200
text/css
Stylesheet
https://tfl.gov.uk/static/1/images/vsprite_x2.b838730f.png
h2
866.9359999476
927.55599995144
269160
268413
200
image/png
Image
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Light.woff2
h2
869.30999998003
913.61999989022
22076
21296
200
font/woff2
Font
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Regular.woff2
h2
869.60799992085
926.4639999019
21399
20620
200
font/woff2
Font
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Medium.woff2
h2
888.52499995846
937.04799993429
21719
20940
200
font/woff2
Font
https://tfl.gov.uk/static/1/images/homepage_sprite_x2.png
h2
923.63499989733
964.99799995217
17832
17058
200
image/png
Image
https://dpm.demdex.net/id?d_visid_ver=5.3.0&d_fieldgroup=MC&d_rtbd=json&d_ver=2&d_orgid=C0BC3704533094DA0A490D44%40AdobeOrg&d_nsid=0&ts=1656340193781
http/1.1
963.16799998749
1051.4949999051
1116
362
200
application/json
XHR
https://assets.adobedtm.com/extensions/EP171e731c9ba34f1c950c36d26e3efd61/AppMeasurement.min.js
h2
969.861999969
1049.2439999944
12616
33557
200
application/x-javascript
Script
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
http/1.1
981.05099995155
1090.9289999399
44457
154873
200
text/javascript
Script
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCab45d919a40743008971ccf82cc27b6b-source.min.js
h2
1086.6739999037
1106.6879999125
1001
1505
200
application/x-javascript
Script
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCf45ab1dff52d42199459c037ebb4ed96-source.min.js
h2
1088.1949999603
1108.5639999947
1010
1737
200
application/x-javascript
Script
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
h2
1092.6959998906
1166.700999951
320994
1314061
200
text/javascript
Script
https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit
h2
1093.2509999257
1108.0799999181
27171
77388
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts/jquery/jquery.xdomainrequest.js
h2
1093.7339999946
1138.3739999728
1996
2196
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts//plugins/includes/jquery.signalR-2.2.0.min.js
h2
1094.4409999065
1150.4069999792
15530
36933
200
text/javascript
Script
https://push-api-tigris.tfl.gov.uk/signalr/hubs
h2
1094.8519998929
1537.9489999032
2098
3683
200
application/javascript
Script
https://tfl.gov.uk/cdn/static/scripts//plugins/includes/knockout-2.3.0.min.js
h2
1095.2549999347
1141.3219999522
20250
42820
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts/specific/stations-stops-piers/predictions.min.83cb6058.js
h2
1095.9019999718
1126.7529999604
13150
50188
200
text/javascript
Script
data
1168.200999964
1168.3989999583
0
3180
200
text/css
Stylesheet
https://tfl.demdex.net/dest5.html?d_nsid=0
http/1.1
1177.6809999719
1302.7949999087
3450
6983
200
text/html
Document
https://cm.everesttech.net/cm/dd?d_uuid=00176040973840072894189813689241668803
http/1.1
1181.113999919
1654.1199999629
554
0
302
text/plain
https://match.adsrvr.org/track/rid?ttd_pid=casale&fmt=json&p=183778&gdpr=1
h2
1226.8219999969
1243.2509999489
510
63
200
application/json
XHR
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi-ip.js
h2
1232.9559999052
1298.4229999129
5300
12316
200
application/javascript
Script
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp.png
h2
1402.1019999636
1448.8919998985
118185
117297
200
image/png
Image
https://tfl.gov.uk/static/1/assets/fonts/njfontsigning-medium.woff
h2
1512.7679998986
1555.9549999889
36007
36608
200
font/woff
Font
https://tfl.gov.uk/cdn/static/cms/images/promos/bank-closure-700x350_rdax_400x200.jpg
h2
1577.1699999459
1629.5959999552
38089
37154
200
image/jpeg
Image
https://tfl.gov.uk/static/0.1/templates/favourites-tabs.html?app_id=8268063a&app_key=14f7f5ff5d64df2e88701cef2049c804
h2
1579.9809999298
2038.4779999731
1335
1888
200
text/html
XHR
https://translate.googleapis.com/translate_static/css/translateelement.css
h2
1600.1039999537
1606.4059999771
4054
18724
200
text/css
Stylesheet
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
h2
1601.4439999126
1610.4019999038
78999
229305
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/feed/stations-list_typeahead.json
h2
1624.2719999282
2132.3309999425
7995
38621
200
application/json
XHR
https://dpm.demdex.net/ibs:dpid=411&dpuuid=Yrm_4gAAAKPrXQNw
http/1.1
1654.4339999091
1726.1269999435
943
42
200
image/gif
Image
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi.js
h2
1719.4409999065
1795.89999991
112658
384688
200
text/javascript
Script
https://tfl.gov.uk/StatusUpdates/StatusBoard?modes=tube,dlr,overground,elizabeth-line,tram&collapsed=True&isHomeOrModePageStatusBoard=True&isStatusUpdatesPage=False&isFavouritesPanel=False&app_id=8268063a&app_key=14f7f5ff5d64df2e88701cef2049c804
h2
1747.9399999138
2185.6939999852
1341
2433
200
text/html
XHR
https://www.gstatic.com/images/branding/product/1x/translate_24dp.png
h2
1797.6379999891
1800.8689999115
1634
846
200
image/png
Image
https://www.gstatic.com/images/branding/googlelogo/1x/googlelogo_color_42x16dp.png
h2
1797.9719999712
1801.4459999977
1698
910
200
image/png
Image
https://www.gstatic.com/images/branding/product/2x/translate_24dp.png
h2
1799.3839998962
1802.151999902
2631
1842
200
image/png
Image
https://translate-pa.googleapis.com/v1/supportedLanguages?client=te&display_language=en-US&key=AIzaSyBWDj0QJvVIx8XOhRegXX5_SrRWxhT5Hs4&callback=callback
h2
1841.6099998867
1855.7489999803
2070
13506
200
text/javascript
Script
https://tfl.gov.uk/static/0.1/templates/favourites-tabs.html?app_id=8268063a&app_key=14f7f5ff5d64df2e88701cef2049c804
h2
2193.8339999178
2362.9369999981
1335
1888
200
text/html
XHR
https://api.rlcdn.com/api/identity?pid=2&rt=envelope
h2
2728.5379999084
2764.5469999406
418
0
204
text/plain
XHR
https://tfl.gov.uk/static/1/images/bubble-pointer.svg
h2
3842.6449999679
3893.2989999885
1199
678
200
image/svg+xml
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
736.479
15.175
821.431
10.224
831.758
13.364
845.339
13.15
860.844
10.702
874.687
26.695
903.974
18.506
922.489
10.088
944.807
12.124
957.365
50.385
1022.165
11.321
1035.804
15.706
1051.539
16.81
1068.78
42.457
1111.373
6.74
1121.963
73.356
1195.85
11.798
1207.933
5.311
1217.016
6.053
1229.888
26.462
1265.405
338.519
1603.951
12.5
1616.478
60.167
1681.484
5.963
1694.502
34.085
1730.353
10.155
1746.67
8.333
1788.04
36.499
1824.575
9.909
1834.585
6.445
1852.844
5.135
1858.114
6.139
1887.659
6.64
1901.148
7.896
2159.266
20.058
2212.784
6.27
2219.097
6.946
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Properly size images — Potential savings of 16 KiB
Images can slow down the page's load time. Tfl.gov.uk should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/cms/images/promos/bank-closure-700x350_rdax_400x200.jpg
37154
10073
https://tfl.gov.uk/cdn/static/cms/images/promos/traveltools_rdax_400x200.jpg
23804
6454
Defer offscreen images — Potential savings of 23 KiB
Time to Interactive can be slowed down by resources on the page. Tfl.gov.uk should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp_rdax_400x200.png
20685
20685
https://tfl.gov.uk/static/cms/images/GLA_Logo.png
2595
2595
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Tfl.gov.uk should consider minifying CSS files.
Minify JavaScript — Potential savings of 128 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Tfl.gov.uk should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
320994
113677
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
48106
8605
https://tfl.gov.uk/cdn/static/scripts/core/min/init.min.94a51acf.js
11293
4514
https://tfl.gov.uk/cdn/static/scripts/specific/stations-stops-piers/predictions.min.83cb6058.js
13150
4337
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 600 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://tfl.gov.uk/
599.171
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Tfl.gov.uk should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://tfl.gov.uk/
190
https://tfl.gov.uk/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Tfl.gov.uk should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 8 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
8109
https://tfl.gov.uk/cdn/static/scripts/plugins/smart-banner/smartbanner.js
74
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
59
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp.png
0
Avoids enormous network payloads — Total size was 1,607 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
320994
https://tfl.gov.uk/static/1/images/vsprite_x2.b838730f.png
269160
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp.png
118185
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi.js
112658
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
78999
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
55496
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
54759
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
52410
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
48106
https://tfl.gov.uk/cdn/static/styles/core/min/modules.min.04f99c82.css
47279
Avoid chaining critical requests — 10 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Tfl.gov.uk should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.5 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://tfl.gov.uk/
597.992
7.452
3.9
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
368.938
217.097
19.865
https://tfl.gov.uk/cdn/static/scripts/core/min/init.min.94a51acf.js
76.513
61.564
0.613
Unattributable
74.67
2.64
0.162
https://tfl.gov.uk/cdn-cgi/apps/body/WpKF0Tdo9EZZ1RX5MARAhGi2xsM.js
73.484
72.794
0.191
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
72.451
64.075
3.375
https://consent.cookiebot.com/uc.js
59.103
40.97
4.025
Minimizes main-thread work — 1.5 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
584.517
Other
343.877
Style & Layout
318.845
Rendering
140.833
Parse HTML & CSS
80.798
Script Parsing & Compilation
48.571
Garbage Collection
9.995
Keep request counts low and transfer sizes small — 58 requests • 1,607 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
58
1645868
Script
22
812837
Image
14
505761
Stylesheet
7
185379
Font
4
101201
Document
2
25733
Other
9
14957
Media
0
0
Third-party
21
385225
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
110224
0
SHOW DETAILS
73100
0
SHOW DETAILS
44457
0
SHOW DETAILS
30525
0
SHOW DETAILS
5963
0
SHOW DETAILS
510
0
SHOW DETAILS
418
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Plan a journey New Journey My Journeys Recents Journey preferences From locatio…
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Plan a journey New Journey My Journeys Recents Journey preferences From locatio…
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
Tube, DLR, and London Overground, Elizabeth line and Tram London Overground Par…
0.0078681572199909
Journey preferences From location To location Leaving: now change time
0.0050694398930555
Live arrivals Maps Nearby
0.0035659776874228
Santander Cycles logo Santander Cycles
0.00026258562971022
Emirates Airline logo Emirates Air Line
0.00026258562971022
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 3 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
2620
169
https://tfl.gov.uk/cdn-cgi/apps/body/WpKF0Tdo9EZZ1RX5MARAhGi2xsM.js
2100
73
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
745
50
Avoid non-composited animations — 2 animated elements found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
New Journey
div.goog-te-spinner-pos > div.goog-te-spinner-animation > svg.goog-te-spinner > circle.goog-te-spinner-path
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tfl.gov.uk on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Speed Index — 1.5 s
The time taken for the page contents to be visibly populated.

Audits

Max Potential First Input Delay — 170 ms
Users could experience a delay when interacting with the page.

Other

Eliminate render-blocking resources — Potential savings of 170 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Tfl.gov.uk should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
54759
80
Reduce unused CSS — Potential savings of 158 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Tfl.gov.uk should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
55496
55024
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
54759
51715
https://tfl.gov.uk/cdn/static/styles/core/min/modules.min.04f99c82.css
47279
42389
https://tfl.gov.uk/cdn/static/styles/core/min/medium.min.11444b05.css
13137
12192
Reduce unused JavaScript — Potential savings of 347 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
320994
249370
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
78999
57854
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
44457
24758
https://consent.cookiebot.com/uc.js
30525
22861
Serve images in next-gen formats — Potential savings of 225 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp.png
117297
91891.65
https://tfl.gov.uk/static/1/images/vsprite_x2.b838730f.png
268413
90296.25
https://tfl.gov.uk/cdn/static/cms/images/promos/bank-closure-700x350_rdax_400x200.jpg
37154
18599.15
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp_rdax_400x200.png
20685
15866.95
https://tfl.gov.uk/cdn/static/cms/images/promos/traveltools_rdax_400x200.jpg
23804
13709.8
Serve static assets with an efficient cache policy — 8 resources found
Tfl.gov.uk can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi-ip.js
0
5300
https://consent.cookiebot.com/uc.js
1031000
30525
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
1189000
44457
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
3600000
52410
https://translate.googleapis.com/translate_static/css/translateelement.css
3600000
4054
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCf45ab1dff52d42199459c037ebb4ed96-source.min.js
3600000
1010
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCab45d919a40743008971ccf82cc27b6b-source.min.js
3600000
1001
https://push-api-tigris.tfl.gov.uk/signalr/hubs
604800000
2098

Metrics

Largest Contentful Paint — 2.6 s
The timing of the largest text or image that is painted.

Other

Avoid an excessive DOM size — 2,144 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
2144
Maximum DOM Depth
div.remove-content-container > span.twitter-typeahead > span.tt-dropdown-menu > div.tt-dataset-geolocation
25
Maximum Child Elements
Select Language Afrikaans Albanian Amharic Arabic Armenian Azerbaijani Basque B…
109
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Light.woff2
44.309999910183
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Regular.woff2
56.855999981053
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Medium.woff2
48.52299997583
https://tfl.gov.uk/static/1/assets/fonts/njfontsigning-medium.woff
43.187000090256
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
SHOW DETAILS
SHOW DETAILS
SHOW DETAILS
SHOW DETAILS
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://tfl.gov.uk/cdn/static/cms/images/promos/traveltools_rdax_400x200.jpg
https://tfl.gov.uk/static/cms/images/MoL.png
84

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of tfl.gov.uk. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tfl.gov.uk may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[role]`s do not have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Failing Elements
div.geolocation-box > div.remove-content-container > span.twitter-typeahead > input#InputFrom
div#search-filter-form-1 > div.remove-content-container > span.twitter-typeahead > input#InputTo
`[role]`s are not contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
Failing Elements
More menu options  

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
div#fav-home-bus-search-filter > form#search-filter-form-fav-home > div.submit-button > input#go-submit

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
Failing Elements
London Overground Part suspended  

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
83

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that tfl.gov.uk should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.12.4
jQuery UI
1.11.4
LABjs
Knockout
2.3.0
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://tfl.gov.uk/
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 10 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
4
Medium
SHOW DETAILS
4
High
SHOW DETAILS
2
Medium

Audits

Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
75

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for tfl.gov.uk. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tfl.gov.uk on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
robots.txt is not valid — 1 error found
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.
Line # Content Error
6
Sitemap: /sitemap.xml
Invalid sitemap URL

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
33

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of tfl.gov.uk. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tfl.gov.uk on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 66
Performance 34
Accessibility 93
Best Practices 83
SEO 79
PWA 40
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://tfl.gov.uk/
Updated: 27th June, 2022

0.85 seconds
First Contentful Paint (FCP)
93%
4%
3%

0.03 seconds
First Input Delay (FID)
89%
7%
4%

Simulate loading on mobile
34

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for tfl.gov.uk. This includes details about optimizing page load times which can result in a better user experience.

Other

Properly size images
Images can slow down the page's load time. Tfl.gov.uk should consider serving more appropriate-sized images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Tfl.gov.uk should consider minifying CSS files.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 550 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://tfl.gov.uk/
551.326
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Tfl.gov.uk should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://tfl.gov.uk/
630
https://tfl.gov.uk/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Tfl.gov.uk should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 8 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
8109
https://tfl.gov.uk/cdn/static/scripts/plugins/smart-banner/smartbanner.js
74
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
59
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
Avoids enormous network payloads — Total size was 1,489 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
320991
https://tfl.gov.uk/static/1/images/vsprite_x2.b838730f.png
269160
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi.js
112663
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
78999
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
55496
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
54759
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
52410
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
48106
https://tfl.gov.uk/cdn/static/styles/core/min/modules.min.04f99c82.css
47279
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
44457
Avoid chaining critical requests — 8 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Tfl.gov.uk should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Keep request counts low and transfer sizes small — 57 requests • 1,489 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
57
1525167
Script
22
812882
Image
13
384988
Stylesheet
7
185433
Font
4
101191
Document
2
25731
Other
9
14942
Media
0
0
Third-party
21
385266
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Tube, DLR, and London Overground, Elizabeth line and Tram
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Avoid large layout shifts — 4 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
  Plan a journey   My Journeys & recents Live arrivals Maps Nearby Tube, DLR, a…
0.10411271636909
    Menu   Search Open Favourites Now you can save your favourites Take a look
0.020750988142292
This weekend
0.0035688121848167
Open Favourites Now you can save your favourites Take a look
0.0028174833038026
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 15 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
11460
687
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
2856
246
https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit
12174
246
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
9360
184
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
13020
131
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
4482
129
https://tfl.gov.uk/
1366
111
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
3882
93
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
12570
84
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
8910
70
https://tfl.gov.uk/
1260
66
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
2160
65
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
4260
63
https://tfl.gov.uk/cdn/static/scripts/core/min/init.min.94a51acf.js
7710
63
Unattributable
631
59
Avoid non-composited animations — 1 animated element found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
div.goog-te-spinner-pos > div.goog-te-spinner-animation > svg.goog-te-spinner > circle.goog-te-spinner-path
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tfl.gov.uk on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://tfl.gov.uk/
http/1.1
0
79.182000015862
338
0
301
text/plain
https://tfl.gov.uk/
h2
79.481000080705
629.81499999296
22283
132646
200
text/html
Document
https://tfl.gov.uk/cdn-cgi/apps/head/rSUs7emVimrui1kJk7ctnzLrlfo.js
h2
646.40399999917
689.49000001885
2271
4686
200
application/javascript
Script
https://consent.cookiebot.com/uc.js
h2
646.56000002287
762.78700004332
30524
98470
200
application/javascript
Script
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
h2
787.46700007468
811.26700004097
52410
178374
200
application/x-javascript
Script
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
h2
647.0810000319
753.19199997466
54759
424644
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/modules.min.04f99c82.css
h2
647.2889999859
712.50600006897
47279
302526
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
h2
647.51300006174
767.39300007466
55496
374049
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
h2
798.43800002709
845.64600000158
48106
116841
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts/plugins/smart-banner/smartbanner.js
h2
798.8390000537
836.85900003184
5049
14934
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/images/MoL-small.png
h2
799.11500005983
854.04300002847
2158
1371
200
image/png
Image
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp_rdax_400x200.png
h2
799.29900006391
848.7309999764
21616
20685
200
image/png
Image
https://tfl.gov.uk/cdn/static/cms/images/promos/traveltools_rdax_400x200.jpg
h2
799.40100002568
848.24399999343
24739
23804
200
image/jpeg
Image
https://tfl.gov.uk/static/cms/images/MoL.png
h2
799.92500005756
851.17300006095
2490
1714
200
image/png
Image
https://tfl.gov.uk/static/cms/images/GLA_Logo.png
h2
800.25199998636
836.43300004769
3375
2595
200
image/png
Image
https://tfl.gov.uk/cdn/static/scripts/core/min/init.min.94a51acf.js
h2
772.70900004078
829.26300005056
11292
37640
200
text/javascript
Script
https://tfl.gov.uk/cdn-cgi/apps/body/WpKF0Tdo9EZZ1RX5MARAhGi2xsM.js
h2
800.5290000001
850.71100003552
3882
8664
200
application/javascript
Script
https://tfl.gov.uk/cdn/static/styles/core/min/medium.min.11444b05.css
h2
800.70999998134
858.26200002339
13143
71192
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/large.min.59f47210.css
h2
800.87799998
869.51700004283
8148
41614
200
text/css
Stylesheet
https://tfl.gov.uk/cdn/static/styles/core/min/print.min.0a482449.css
h2
801.05400003958
854.60000007879
2554
8514
200
text/css
Stylesheet
https://tfl.gov.uk/static/1/images/vsprite_x2.b838730f.png
h2
813.47599998116
883.40900000185
269160
268413
200
image/png
Image
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Light.woff2
h2
814.07700001728
863.7550000567
22078
21296
200
font/woff2
Font
https://tfl.gov.uk/static/1/images/homepage_sprite_x2.png
h2
842.11399999913
900.69999999832
17832
17058
200
image/png
Image
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Regular.woff2
h2
842.75800001342
891.62200002465
21398
20620
200
font/woff2
Font
https://dpm.demdex.net/id?d_visid_ver=5.3.0&d_fieldgroup=MC&d_rtbd=json&d_ver=2&d_orgid=C0BC3704533094DA0A490D44%40AdobeOrg&d_nsid=0&ts=1656340221206
http/1.1
906.33000002708
988.33600000944
1116
362
200
application/json
XHR
https://assets.adobedtm.com/extensions/EP171e731c9ba34f1c950c36d26e3efd61/AppMeasurement.min.js
h2
911.64000006393
933.34400001913
12616
33557
200
application/x-javascript
Script
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
http/1.1
920.50500004552
1022.8290000232
44457
154873
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Medium.woff2
h2
1003.5619999981
1044.4910000078
21718
20940
200
font/woff2
Font
data
1034.5690000104
1034.7560000373
0
3180
200
text/css
Stylesheet
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCab45d919a40743008971ccf82cc27b6b-source.min.js
h2
1036.9789999677
1057.7830000548
1001
1505
200
application/x-javascript
Script
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCf45ab1dff52d42199459c037ebb4ed96-source.min.js
h2
1038.7249999912
1060.5020000366
1010
1737
200
application/x-javascript
Script
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
h2
1128.6829999881
1214.439000003
320991
1314061
200
text/javascript
Script
https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit
h2
1129.1190000484
1152.5050000055
27171
77388
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts/jquery/jquery.xdomainrequest.js
h2
1129.5750000281
1200.1269999892
1996
2196
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts//plugins/includes/jquery.signalR-2.2.0.min.js
h2
1130.3509999998
1182.2000000393
15530
36933
200
text/javascript
Script
https://push-api-tigris.tfl.gov.uk/signalr/hubs
h2
1130.5870000506
1624.9049999751
2100
3683
200
application/javascript
Script
https://tfl.gov.uk/cdn/static/scripts//plugins/includes/knockout-2.3.0.min.js
h2
1131.2770000659
1172.9050000431
20251
42820
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/scripts/specific/stations-stops-piers/predictions.min.83cb6058.js
h2
1131.7630000412
1170.7040000474
13154
50188
200
text/javascript
Script
https://tfl.demdex.net/dest5.html?d_nsid=0
http/1.1
1143.4069999959
1267.9990000324
3448
6983
200
text/html
Document
https://cm.everesttech.net/cm/dd?d_uuid=78887990421217143893499258959569957923
http/1.1
1155.509000062
1224.9849999789
554
0
302
text/plain
https://match.adsrvr.org/track/rid?ttd_pid=casale&fmt=json&p=183778&gdpr=1
h2
1201.3560000341
1218.4540000744
510
63
200
application/json
XHR
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi-ip.js
h2
1208.6450000061
1295.2750000404
5339
12316
200
application/javascript
Script
https://dpm.demdex.net/ibs:dpid=411&dpuuid=Yrm_-QAAADR76gN2
http/1.1
1225.2580000786
1299.9970000237
943
42
200
image/gif
Image
https://tfl.gov.uk/static/1/assets/fonts/njfontsigning-medium.woff
h2
1522.8760000318
1570.1559999725
35997
36608
200
font/woff
Font
https://tfl.gov.uk/static/0.1/templates/favourites-tabs.html?app_id=8268063a&app_key=14f7f5ff5d64df2e88701cef2049c804
h2
1608.6900000228
2003.5230000503
1335
1888
200
text/html
XHR
https://translate.googleapis.com/translate_static/css/translateelement.css
h2
1631.2620000681
1636.2179999705
4054
18724
200
text/css
Stylesheet
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
h2
1631.5089999698
1641.4220000152
78999
229305
200
text/javascript
Script
https://tfl.gov.uk/cdn/static/feed/stations-list_typeahead.json
h2
1651.1409999803
2049.2869999725
7995
38621
200
application/json
XHR
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi.js
h2
1715.8569999738
1817.7569999825
112663
384688
200
text/javascript
Script
https://tfl.gov.uk/StatusUpdates/StatusBoard?modes=tube,dlr,overground,elizabeth-line,tram&collapsed=True&isHomeOrModePageStatusBoard=True&isStatusUpdatesPage=False&isFavouritesPanel=False&app_id=8268063a&app_key=14f7f5ff5d64df2e88701cef2049c804
h2
1732.583999983
2180.1899999846
1341
2433
200
text/html
XHR
https://www.gstatic.com/images/branding/product/1x/translate_24dp.png
h2
1767.8510000696
1772.3359999945
1634
846
200
image/png
Image
https://www.gstatic.com/images/branding/googlelogo/1x/googlelogo_color_42x16dp.png
h2
1768.2110000169
1773.3609999996
1698
910
200
image/png
Image
https://www.gstatic.com/images/branding/product/2x/translate_24dp.png
h2
1769.8860000819
1774.5839999989
2631
1842
200
image/png
Image
https://tfl.gov.uk/cdn/static/images/pwa/512x512.png
h2
1802.0180000458
1851.7480000155
35511
34782
200
image/png
Image
https://translate-pa.googleapis.com/v1/supportedLanguages?client=te&display_language=en-US&key=AIzaSyBWDj0QJvVIx8XOhRegXX5_SrRWxhT5Hs4&callback=callback
h2
1823.9610000746
1839.3820000347
2070
13506
200
text/javascript
Script
https://tfl.gov.uk/static/0.1/templates/favourites-tabs.html?app_id=8268063a&app_key=14f7f5ff5d64df2e88701cef2049c804
h2
2189.2690000823
2646.9300000463
1335
1888
200
text/html
XHR
https://api.rlcdn.com/api/identity?pid=2&rt=envelope
h2
2703.3710000105
2758.8799999794
418
0
204
text/plain
XHR
https://tfl.gov.uk/static/1/images/bubble-pointer.svg
h2
3822.6380000124
3868.5120000737
1201
678
200
image/svg+xml
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
671.554
16.422
749.864
10.703
790.822
16.128
807.785
15.69
824.352
9.843
836.117
20.039
856.171
11.453
869.511
12.331
895.786
61.427
979.801
15.642
995.489
17.377
1013.285
55.254
1071.883
91.955
1168.12
23.146
1200.59
6.604
1212.556
32.247
1298.906
343.518
1642.465
13.331
1655.806
61.588
1721.073
8.486
1737.134
6.38
1755.422
5.246
1771.77
32.823
1805.078
11.337
1816.545
7.178
1834.656
12.922
1847.63
9.441
1891.224
11.53
2086.481
20.938
2109.323
14.856
2217.262
7.335
2224.64
8.24
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Metrics

First Contentful Paint — 2.2 s
The time taken for the first image or text on the page to be rendered.
Cumulative Layout Shift — 0.131
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

First Meaningful Paint — 3.2 s
The time taken for the primary content of the page to be rendered.

Other

Defer offscreen images — Potential savings of 26 KiB
Time to Interactive can be slowed down by resources on the page. Tfl.gov.uk should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/cms/images/promos/traveltools_rdax_400x200.jpg
23804
23804
https://tfl.gov.uk/static/cms/images/GLA_Logo.png
2595
2595
Minify JavaScript — Potential savings of 128 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Tfl.gov.uk should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
320991
113675
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
48106
8605
https://tfl.gov.uk/cdn/static/scripts/core/min/init.min.94a51acf.js
11292
4514
https://tfl.gov.uk/cdn/static/scripts/specific/stations-stops-piers/predictions.min.83cb6058.js
13154
4338
Reduce unused CSS — Potential savings of 158 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Tfl.gov.uk should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
55496
54881
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
54759
51752
https://tfl.gov.uk/cdn/static/styles/core/min/modules.min.04f99c82.css
47279
42504
https://tfl.gov.uk/cdn/static/styles/core/min/medium.min.11444b05.css
13143
13143
Serve images in next-gen formats — Potential savings of 146 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/static/1/images/vsprite_x2.b838730f.png
268413
90296.25
https://tfl.gov.uk/cdn/static/images/pwa/512x512.png
34782
29166.7
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp_rdax_400x200.png
20685
15866.95
https://tfl.gov.uk/cdn/static/cms/images/promos/traveltools_rdax_400x200.jpg
23804
13709.8
Serve static assets with an efficient cache policy — 8 resources found
Tfl.gov.uk can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi-ip.js
0
5339
https://consent.cookiebot.com/uc.js
675000
30524
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
1161000
44457
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
3600000
52410
https://translate.googleapis.com/translate_static/css/translateelement.css
3600000
4054
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCf45ab1dff52d42199459c037ebb4ed96-source.min.js
3600000
1010
https://assets.adobedtm.com/1b4372ea8265/bb7b18fe4f35/6fab52c2df82/RCab45d919a40743008971ccf82cc27b6b-source.min.js
3600000
1001
https://push-api-tigris.tfl.gov.uk/signalr/hubs
604800000
2100
Reduce JavaScript execution time — 2.6 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://tfl.gov.uk/
2389.516
29.292
18.852
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
1508.568
912.332
70.82
https://assets.adobedtm.com/launch-ENc5e3f827edc94f2a816110524598acd7.min.js
391
352.188
16.6
https://tfl.gov.uk/cdn-cgi/apps/body/WpKF0Tdo9EZZ1RX5MARAhGi2xsM.js
334.892
331.516
0.792
Unattributable
333.196
11.828
0.536
https://tfl.gov.uk/cdn/static/scripts/core/min/init.min.94a51acf.js
319.452
279.788
2.164
https://consent.cookiebot.com/uc.js
226.216
164.8
15.928
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
151.964
125.184
13.076
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
127.316
105.38
9.904
https://tfl.gov.uk/cdn/static/scripts/jquery/1.12.4/jquery.min.js
125.116
82.3
7.712
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
64.512
0
0
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
62.76
0
0
https://rumcdn.geoedge.be/3df961a4-5983-42d2-89f7-74444a98406d/grumi-ip.js
58.36
27.056
7.356

Metrics

Time to Interactive — 11.8 s
The time taken for the page to become fully interactive.
Speed Index — 6.5 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 990 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 11.2 s
The timing of the largest text or image that is painted.

Audits

Max Potential First Input Delay — 690 ms
Users could experience a delay when interacting with the page.

Other

Eliminate render-blocking resources — Potential savings of 790 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Tfl.gov.uk should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://tfl.gov.uk/cdn/static/styles/core/min/small.min.c3f1d919.css
54759
450
https://tfl.gov.uk/cdn/static/styles/core/min/modules.min.04f99c82.css
47279
150
https://tfl.gov.uk/cdn/static/styles/core/min/specifics-small.min.199e020e.css
55496
300
Reduce unused JavaScript — Potential savings of 347 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
320991
249962
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.i4IANaiI1fI.O/am=Bg/d=1/exm=el_conf/ed=1/rs=AN8SPfq7qIjMUSQN9IknDLkRVxVwrF2qcg/m=el_main
78999
57854
https://js-sec.indexww.com/ht/p/183778-113668365508142.js
44457
24931
https://consent.cookiebot.com/uc.js
30524
22860
Avoid an excessive DOM size — 2,148 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
2148
Maximum DOM Depth
div.remove-content-container > span.twitter-typeahead > span.tt-dropdown-menu > div.tt-dataset-geolocation
25
Maximum Child Elements
Select Language Afrikaans Albanian Amharic Arabic Armenian Azerbaijani Basque B…
109
Minimize main-thread work — 6.4 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
2548.54
Other
1372.328
Style & Layout
1221.264
Rendering
624.668
Parse HTML & CSS
357.016
Script Parsing & Compilation
195.852
Garbage Collection
66.184
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Light.woff2
49.678000039421
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Regular.woff2
48.864000011235
https://tfl.gov.uk/cdn/static/assets/fonts/Johnston100-Medium.woff2
40.929000009783
https://tfl.gov.uk/static/1/assets/fonts/njfontsigning-medium.woff
47.279999940656
Reduce the impact of third-party code — Third-party code blocked the main thread for 290 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
73098
204.724
SHOW DETAILS
110224
48.908
SHOW DETAILS
44457
38.424
SHOW DETAILS
30524
0
SHOW DETAILS
5963
0
SHOW DETAILS
510
0
SHOW DETAILS
418
0
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
SHOW DETAILS
SHOW DETAILS
SHOW DETAILS
SHOW DETAILS
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://tfl.gov.uk/cdn/static/cms/images/promos/tfl-go-hp_rdax_400x200.png
https://tfl.gov.uk/static/cms/images/MoL.png
First Contentful Paint (3G) — 4560 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
93

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of tfl.gov.uk. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tfl.gov.uk may provide assistance to deaf or hearing-impaired users with captions on videos.

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
div#fav-home-bus-search-filter > form#search-filter-form-fav-home > div.submit-button > input#go-submit

Names and labels

Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
Failing Elements
London Overground Part suspended  

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
83

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that tfl.gov.uk should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.12.4
jQuery UI
1.11.4
LABjs
Knockout
2.3.0
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://tfl.gov.uk/
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 10 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
4
Medium
SHOW DETAILS
4
High
SHOW DETAILS
2
Medium

Audits

Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://tfl.gov.uk/cdn/static/scripts/core/min/global.min.3aee3dae.js
79

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for tfl.gov.uk. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tfl.gov.uk on mobile screens.
Document uses legible font sizes — 99.83% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
SHOW DETAILS
.goog-te-gadget
0.17%
11px
SHOW DETAILS
99.83%
≥ 12px
Tap targets are sized appropriately — 100% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
robots.txt is not valid — 1 error found
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.
Line # Content Error
6
Sitemap: /sitemap.xml
Invalid sitemap URL

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
40

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of tfl.gov.uk. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tfl.gov.uk on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 104.16.101.13
Continent: North America
Country: United States
United States Flag
Region:
City:
Longitude: -97.822
Latitude: 37.751
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Cloudflare, Inc.
Registration

Domain Registrant

Private Registration: No
Name:
Organization: UK Cabinet Office
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 94/100
WOT Child Safety: 94/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: tfl.gov.uk
Issued By: Cloudflare Inc ECC CA-3
Valid From: 3rd January, 2022
Valid To: 3rd January, 2023
Subject: CN = tfl.gov.uk
O = Cloudflare, Inc.
L = San Francisco
S = US
Hash: b8a0572f
Issuer: CN = Cloudflare Inc ECC CA-3
O = Cloudflare, Inc.
S = US
Version: 2
Serial Number: 16155997313669028535092603345296187162
Serial Number (Hex): 0C27882AA655D10DEC7EC6264DE05F1A
Valid From: 3rd January, 2024
Valid To: 3rd January, 2024
Signature Algorithm (Short Name): ecdsa-with-SHA256
Signature Algorithm (Long Name): ecdsa-with-SHA256
Authority Key Identifier: keyid:A5:CE:37:EA:EB:B0:75:0E:94:67:88:B4:45:FA:D9:24:10:87:96:1F
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl3.digicert.com/CloudflareIncECCCA-3.crl

Full Name:
URI:http://crl4.digicert.com/CloudflareIncECCCA-3.crl
Certificate Policies: Policy: 2.23.140.1.2.2
CPS: http://www.digicert.com/CPS
Authority Information Access: OCSP - URI:http://ocsp.digicert.com
CA Issuers - URI:http://cacerts.digicert.com/CloudflareIncECCCA-3.crt
SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : AD:F7:BE:FA:7C:FF:10:C8:8B:9D:3D:9C:1E:3E:18:6A:
B4:67:29:5D:CF:B1:0C:24:CA:85:86:34:EB:DC:82:8A
Timestamp : Jan 3 00:34:06.892 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:52:DB:BB:8C:CD:B7:14:2B:F9:CF:91:63:
6C:C4:53:B4:A1:1C:95:F0:49:D1:B9:39:24:3A:3F:22:
AB:E3:7C:97:02:20:5E:AB:20:D7:32:DA:82:22:84:CE:
A9:1E:5A:88:E2:E3:39:AF:12:F4:AF:93:FA:2A:8C:B4:
72:24:C5:80:5A:26
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 35:CF:19:1B:BF:B1:6C:57:BF:0F:AD:4C:6D:42:CB:BB:
B6:27:20:26:51:EA:3F:E1:2A:EF:A8:03:C3:3B:D6:4C
Timestamp : Jan 3 00:34:06.871 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:35:68:CB:6B:CC:F1:6E:44:BC:33:0C:CC:
D8:C7:BC:F6:91:09:3E:CC:81:29:12:92:AA:9D:98:81:
1B:48:4E:B5:02:21:00:E0:6B:99:18:48:FA:E1:E7:2B:
3E:16:A9:0F:60:ED:DD:5C:B7:60:3D:AE:91:79:83:BB:
02:7C:4A:38:D5:F5:D5
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : B3:73:77:07:E1:84:50:F8:63:86:D6:05:A9:DC:11:09:
4A:79:2D:B1:67:0C:0B:87:DC:F0:03:0E:79:36:A5:9A
Timestamp : Jan 3 00:34:06.923 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:E2:92:13:5A:77:85:4D:0A:F5:C7:79:
7D:E1:C0:6B:D9:73:FE:81:2F:44:51:AB:B4:89:B9:F0:
7B:97:33:0E:20:02:20:1B:8A:D3:7B:30:45:CF:12:CF:
1C:F3:B6:ED:B6:15:C9:DE:56:80:88:F4:70:F6:C8:3D:
A4:17:7A:4F:2C:74:67
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:*.ce.tfl.gov.uk
DNS:*.content.tfl.gov.uk
DNS:*.data.tfl.gov.uk
DNS:*.im.tfl.gov.uk
DNS:*.pensions.tfl.gov.uk
DNS:*.tfl.gov.uk
DNS:tfl.gov.uk
DNS:*.lruc.content.tfl.gov.uk
Technical

DNS Lookup

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 27th June, 2022
Content-Type: text/html; charset=utf-8
Cache-Control: public, must-revalidate, max-age=60, s-maxage=60
Server: cloudflare
Connection: keep-alive
Access-Control-Allow-Origin: https://tfl.gov.uk
Age: 21
api-entity-payload: ActiveServiceType, Line, LineStatus, RoadCorridor, Line, LineStatus, Line, LineStatus, Line, LineStatus
Vary: Accept-Encoding
Via: 1.1 varnish
X-Backend: web
X-Banning:
X-Cache: HIT
X-Cache-Hits: 39
X-Cacheable: Yes. Cacheable
X-Frame-Options: deny
X-Proxy-Connection: unset
X-TTL: 60.000
X-TTL-RULE: 0
X-Varnish: 755970647 755965454
CF-Cache-Status: DYNAMIC
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
CF-RAY: 721ee07eb9e38c57-EWR

Whois Lookup

Created: 31st July, 1996
Changed:
Expires:
Registrar: No registrar listed. This domain is directly registered with Nominet.
Status:
Nameservers: auth00.ns.de.uu.net
auth50.ns.de.uu.net
ns0.ja.net
ns1.surfnet.nl
ns2.ja.net
ns3.ja.net
ns4.ja.net
Owner Organization: UK Cabinet Office
Full Whois: Domain name:
gov.uk

Registrant:
UK Cabinet Office

Registrant type:
UK Government Body

Registrant's address:
Government Digital Service
The White Chapel Building 7th Floor
10 Whitechapel High Street
London
E1 8QS
GB

Registrar:
No registrar listed. This domain is directly registered with Nominet.

Relevant dates:
Registered on: before Aug-1996
Registration status:
No registration status listed.

Name servers:
ns0.ja.net.
ns2.ja.net.
ns3.ja.net.
ns4.ja.net.
auth50.ns.de.uu.net.
auth00.ns.de.uu.net.
ns1.surfnet.nl.


WHOIS lookup made at 15:29:50 27-Jun-2022

--
This WHOIS information is provided for free by Nominet UK the central registry
for .uk domain names. This information and the .uk WHOIS are:

Copyright Nominet UK 1996 - 2022.

You may not access the .uk WHOIS or use any data from it except as permitted
by the terms of use available in full at https://www.nominet.uk/whoisterms,
which includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing
or hiding any or all of this notice and (C) exceeding query rate or volume
limits. The data is provided on an 'as-is' basis and may lag behind the
register. Access may be withdrawn or restricted at any time.
View Raw Whois

Nameservers

Name IP Address
auth00.ns.de.uu.net 192.76.144.14
auth50.ns.de.uu.net 194.128.171.99
ns0.ja.net 193.63.94.20
ns1.surfnet.nl 192.87.106.101
ns2.ja.net 193.63.105.17
ns3.ja.net 193.63.106.103
ns4.ja.net 193.62.157.66
Related

Subdomains

Domain Subdomain
oyster.tfl.gov.uk
oyster

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tfl.gov.uk by the numbers infographic

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