Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

collectionneursavertis.com

Tous les Objets de collection les meilleurs objets de collection

Page Load Speed

3.3 sec in total

First Response

289 ms

Resources Loaded

2 sec

Page Rendered

1000 ms

collectionneursavertis.com screenshot

About Website

Visit collectionneursavertis.com now to see the best up-to-date Collection Neursavertis content and also check out these interesting facts you probably never knew about collectionneursavertis.com

Collectionneurs avertis, antiquités et objets de collection, voyez les enchères et encans les plus populaires sur E-bay France, E-bay Belgique et E-Bay Canada simultanément

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Key Findings

We analyzed Collectionneursavertis.com page load time and found that the first response time was 289 ms and then it took 3 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

collectionneursavertis.com performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.075

95/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

collectionneursavertis.com

289 ms

browse.php

265 ms

xoops.js

201 ms

image.js

254 ms

main.js

226 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 92% of them (90 requests) were addressed to the original Collectionneursavertis.com, 4% (4 requests) were made to S7.addthis.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (723 ms) belongs to the original domain Collectionneursavertis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 880.3 kB (47%)

Content Size

1.9 MB

After Optimization

975.3 kB

In fact, the total size of Collectionneursavertis.com main page is 1.9 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. 55% of websites need less resources to load. Images take 726.0 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 469.9 kB

  • Original 530.4 kB
  • After minification 348.9 kB
  • After compression 60.5 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 181.5 kB, which is 34% 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 469.9 kB or 89% of the original size.

Image Optimization

-3%

Potential reduce by 24.3 kB

  • Original 726.0 kB
  • After minification 701.8 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. Collection Neursavertis images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 358.1 kB

  • Original 564.2 kB
  • After minification 558.9 kB
  • After compression 206.1 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 358.1 kB or 63% of the original size.

CSS Optimization

-80%

Potential reduce by 28.1 kB

  • Original 35.0 kB
  • After minification 34.8 kB
  • After compression 6.9 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. Collectionneursavertis.com needs all CSS files to be minified and compressed as it can save up to 28.1 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (13%)

Requests Now

93

After Optimization

81

The browser has sent 93 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Collection Neursavertis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

collectionneursavertis.com accessibility score

74

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

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

High

Form elements do not have associated labels

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

collectionneursavertis.com best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

collectionneursavertis.com SEO score

64

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Collectionneursavertis.com can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Collectionneursavertis.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 description is not detected on the main page of Collection Neursavertis. 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: