4.9 sec in total
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3.4 sec
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Click here to check amazing Tfl content for United Kingdom. Otherwise, check out these important facts you probably never knew about tfl.gov.uk
Information on all forms of transport in London including cycle hire. Routes, maps, plan a journey, tickets sales, realtime traffic and travel updates.
Visit tfl.gov.ukWe analyzed Tfl.gov.uk page load time and found that the first response time was 603 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
tfl.gov.uk performance score
name
value
score
weighting
Value2.2 s
78/100
10%
Value10.8 s
0/100
25%
Value6.7 s
36/100
10%
Value1,180 ms
21/100
30%
Value0.131
81/100
15%
Value12.9 s
13/100
10%
603 ms
66 ms
312 ms
240 ms
140 ms
Our browser made a total of 43 requests to load all elements on the main page. We found that 74% of them (32 requests) were addressed to the original Tfl.gov.uk, 9% (4 requests) were made to Assets.adobedtm.com and 5% (2 requests) were made to Dpm.demdex.net. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Push-api-tigris.tfl.gov.uk.
Page size can be reduced by 345.4 kB (39%)
893.7 kB
548.2 kB
In fact, the total size of Tfl.gov.uk main page is 893.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 385.8 kB which makes up the majority of the site volume.
Potential reduce by 138.0 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 138.0 kB or 84% of the original size.
Potential reduce by 89.3 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Tfl needs image optimization as it can save up to 89.3 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 118.1 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 118.1 kB or 53% of the original size.
Potential reduce by 45 B
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Tfl.gov.uk has all CSS files already compressed.
Number of requests can be reduced by 21 (57%)
37
16
The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tfl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
tfl.gov.uk
603 ms
rSUs7emVimrui1kJk7ctnzLrlfo.js
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uc.js
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launch-ENc5e3f827edc94f2a816110524598acd7.min.js
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small.min.e29d3d95.css
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modules.min.26aab427.css
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specifics-small.min.e220d4fd.css
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jquery.min.js
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smartbanner.js
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tfl.gov.uk accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
tfl.gov.uk best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
tfl.gov.uk SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tfl.gov.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Tfl.gov.uk main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
tfl.gov.uk
Open Graph data is detected on the main page of Tfl. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: