Tools & Wizards About Us
cargurus.co.uk screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

cargurus.co.uk

Buy and sell cars: Reviews, prices and finance - CarGurus.co.uk

Page Load Speed

3.4 sec in total

First Response

95 ms

Resources Loaded

1.8 sec

Page Rendered

1.5 sec

cargurus.co.uk screenshot

About Website

Welcome to cargurus.co.uk homepage info - get ready to check Car Gurus best content for United Kingdom right away, or after learning these important things about cargurus.co.uk

Thousands of cars. Unbiased dealership reviews. Search by deal rating. Use CarGurus to find the best used car deals.

Visit cargurus.co.uk

Key Findings

We analyzed Cargurus.co.uk page load time and found that the first response time was 95 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

cargurus.co.uk performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value2,270 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value25.0 s

0/100

10%

Network Requests Diagram

www.cargurus.co.uk

95 ms

www.cargurus.co.uk

628 ms

xhr_tag.js

50 ms

breadcrumbs.entry.862d949399c073805d0e0c7367845c58.css

48 ms

app_shell.entry.9e2fec0f0a8013f0c5f5204f92daa3ad.css

54 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Cargurus.co.uk, 50% (45 requests) were made to Static-eu.cargurus.com and 21% (19 requests) were made to Static-assets.cargurus.com. The less responsive or slowest element that took the longest time to load (628 ms) belongs to the original domain Cargurus.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 846.9 kB (32%)

Content Size

2.7 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cargurus.co.uk main page is 2.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only a small number of websites need less resources to load. Javascripts take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 207.8 kB

  • Original 241.0 kB
  • After minification 207.6 kB
  • After compression 33.3 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. This page needs HTML code to be minified as it can gain 33.4 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 207.8 kB or 86% of the original size.

Image Optimization

-2%

Potential reduce by 13.1 kB

  • Original 588.0 kB
  • After minification 574.9 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. Car Gurus images are well optimized though.

JavaScript Optimization

-35%

Potential reduce by 599.9 kB

  • Original 1.7 MB
  • After minification 1.7 MB
  • After compression 1.1 MB

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 599.9 kB or 35% of the original size.

CSS Optimization

-19%

Potential reduce by 26.1 kB

  • Original 138.6 kB
  • After minification 138.4 kB
  • After compression 112.5 kB

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. Cargurus.co.uk needs all CSS files to be minified and compressed as it can save up to 26.1 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 57 (74%)

Requests Now

77

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Car Gurus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.cargurus.co.uk

www.cargurus.co.uk

95 ms

www.cargurus.co.uk

www.cargurus.co.uk

628 ms

xhr_tag.js

xhr_tag.js

50 ms

breadcrumbs.entry.862d949399c073805d0e0c7367845c58.css

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48 ms

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app_shell.entry.9e2fec0f0a8013f0c5f5204f92daa3ad.css

54 ms

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cg_ext_nojqui_global.entry.7f304afa59fe2c25817bc2cc2a40b2e5.css

55 ms

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61 ms

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cg_site_new_home_corp.entry.e5282b87b7accbe0b3ce0b766c4c6f9b.css

67 ms

client

client

127 ms

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49 ms

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51 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

46 ms

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51 ms

gtm.js

gtm.js

173 ms

tags.js

tags.js

70 ms

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subscribeBlade.entry.3673110fa95333accdd5040a5086a061.css

43 ms

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173 ms

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195 ms

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31 ms

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16 ms

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28 ms

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28 ms

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109 ms

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204 ms

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smc_icon_23c0d698af794a6b3ff0c2cfe505cd603ce0b04d2f36f75a61687c3a1ca22dd3.svg

102 ms

Red-Car-sideways_1385658dfabe2ab96bf174f5ff4dc01d8959dded241ae77c6a484cce7eeba1fe.png

Red-Car-sideways_1385658dfabe2ab96bf174f5ff4dc01d8959dded241ae77c6a484cce7eeba1fe.png

117 ms

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gas-pump-regular_ab20a702afaee7ad79d4b09557f317955292973fb4cc8786e77096e909f6abb0.svg

115 ms

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114 ms

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113 ms

shuttle-van-regular_1c17b7d78505066f53f89fb713b3232ec1bdac2a920bebc4b9c7a56da3599244.svg

shuttle-van-regular_1c17b7d78505066f53f89fb713b3232ec1bdac2a920bebc4b9c7a56da3599244.svg

123 ms

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truck-monster-regular_713e15be5b6ae4cd5a4b817791e16987ce638177c775b3e48201570bd5639da1.svg

125 ms

shield-check-regular_f64a51934aecb3645a7f9d71bf68e259c78cd1db435fc77a9cdc5563e42ad784.svg

shield-check-regular_f64a51934aecb3645a7f9d71bf68e259c78cd1db435fc77a9cdc5563e42ad784.svg

122 ms

leaf-regular_ec22534b7b1df7b07bf29f980e3e4efd1904203053f5ed83ad9cf27f343fc692.svg

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123 ms

dog-regular_a92ddb5b8e4fe84884fee97c9bdf8d8cd1cf30de942f266dfd361e0206716c05.svg

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125 ms

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99 ms

cg_home_returning_user_carousels.entry.en_GB.4f08b0bf.js

cg_home_returning_user_carousels.entry.en_GB.4f08b0bf.js

20 ms

cg_home_returning_user_carousels.entry_4a7dcbc61200bb22d3b2f62201825cb4.js

cg_home_returning_user_carousels.entry_4a7dcbc61200bb22d3b2f62201825cb4.js

21 ms

subscribeBlade.entry.en_GB.cfbaf8a4.js

subscribeBlade.entry.en_GB.cfbaf8a4.js

20 ms

subscribeBlade.entry_3673110fa95333accdd5040a5086a061.js

subscribeBlade.entry_3673110fa95333accdd5040a5086a061.js

21 ms

polyfill.entry.69d7bae23a1a7d433702c862c44ae269.js

polyfill.entry.69d7bae23a1a7d433702c862c44ae269.js

25 ms

vendorReduced.entry.1470be2f9bbc7041cdbe.js

vendorReduced.entry.1470be2f9bbc7041cdbe.js

26 ms

ravenDLL.entry.267d77c2e25b6e487670.js

ravenDLL.entry.267d77c2e25b6e487670.js

25 ms

reactDLL.entry.5d7afeeaf36c7cc133e0.js

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26 ms

app_shell.entry.en_GB.3a0684fd.js

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31 ms

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31 ms

external_lib.entry_5c95d09cadc8e6bca6e1f787d868664c.js

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29 ms

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29 ms

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49 ms

cssVarsPolyfill.entry.553b6e8cc16e39a4bf21131dcb6e8ddc.js

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36 ms

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48 ms

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51 ms

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52 ms

analytics.js

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40 ms

gpt.js

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61 ms

jstag

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86 ms

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51 ms

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55 ms

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19 ms

pubads_impl.js

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15 ms

fa-regular-400.woff

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287 ms

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47 ms

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35 ms

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38 ms

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35 ms

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Accessibility Review

cargurus.co.uk accessibility score

91

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

High

Image elements do not have [alt] attributes

Best Practices

cargurus.co.uk best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

cargurus.co.uk SEO score

78

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cargurus.co.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 Cargurus.co.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.

Social Sharing Optimization

cargurus.co.uk

Open Graph description is not detected on the main page of Car Gurus. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: