Tools & Wizards About Us

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

sharing.criteo.com

The Commerce Media Platform for the Open Internet | Criteo

Page Load Speed

2.6 sec in total

First Response

59 ms

Resources Loaded

1.7 sec

Page Rendered

896 ms

About Website

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Key Findings

We analyzed Sharing.criteo.com page load time and found that the first response time was 59 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

sharing.criteo.com performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value13.8 s

1/100

10%

TBT (Total Blocking Time)

Value4,140 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.04

99/100

15%

TTI (Time to Interactive)

Value30.9 s

0/100

10%

Network Requests Diagram

www.criteo.com

59 ms

gtm.js

162 ms

theme.min.css

31 ms

select2.min.css

24 ms

tablepress-combined.min.css

29 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Sharing.criteo.com, 4% (4 requests) were made to Www2.criteo.com and 4% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (636 ms) relates to the external source Www2.criteo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (45%)

Content Size

3.6 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sharing.criteo.com main page is 3.6 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. CSS take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 383.1 kB

  • Original 429.0 kB
  • After minification 265.4 kB
  • After compression 45.9 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 163.6 kB, which is 38% 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 383.1 kB or 89% of the original size.

Image Optimization

-1%

Potential reduce by 3.6 kB

  • Original 511.4 kB
  • After minification 507.9 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. Sharing Criteo images are well optimized though.

JavaScript Optimization

-32%

Potential reduce by 249.3 kB

  • Original 783.9 kB
  • After minification 783.9 kB
  • After compression 534.7 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 249.3 kB or 32% of the original size.

CSS Optimization

-53%

Potential reduce by 995.5 kB

  • Original 1.9 MB
  • After minification 1.9 MB
  • After compression 888.1 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. Sharing.criteo.com needs all CSS files to be minified and compressed as it can save up to 995.5 kB or 53% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (46%)

Requests Now

90

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sharing Criteo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

sharing.criteo.com accessibility score

78

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

sharing.criteo.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

sharing.criteo.com SEO score

79

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

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 Sharing.criteo.com 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 Sharing.criteo.com 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

Open Graph data is detected on the main page of Sharing Criteo. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: