Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

Page Load Speed

3.6 sec in total

First Response

736 ms

Resources Loaded

2.7 sec

Page Rendered

159 ms

bibliotheque.bordeaux.fr screenshot

About Website

Visit bibliotheque.bordeaux.fr now to see the best up-to-date Bibliotheque Bordeaux content for France and also check out these interesting facts you probably never knew about bibliotheque.bordeaux.fr

portail documentaire de la bibliothèque de Bordeaux : informations pratiques, agenda, catalogue, patrimoine et blog ..

Visit bibliotheque.bordeaux.fr

Key Findings

We analyzed Bibliotheque.bordeaux.fr page load time and found that the first response time was 736 ms and then it took 2.9 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

bibliotheque.bordeaux.fr performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value49.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value53.5 s

0/100

25%

SI (Speed Index)

Value49.4 s

0/100

10%

TBT (Total Blocking Time)

Value2,380 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value59.4 s

0/100

10%

Network Requests Diagram

bibliotheque.bordeaux.fr

736 ms

jquery-ui-1.8.1.custom.css

95 ms

base.css

190 ms

form.css

195 ms

patrimoine.css

195 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 99% of them (74 requests) were addressed to the original Bibliotheque.bordeaux.fr, 1% (1 request) were made to Logc279.xiti.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Bibliotheque.bordeaux.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 111.7 kB (12%)

Content Size

897.1 kB

After Optimization

785.4 kB

In fact, the total size of Bibliotheque.bordeaux.fr main page is 897.1 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. 60% of websites need less resources to load. Images take 836.6 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 50.8 kB

  • Original 60.5 kB
  • After minification 43.2 kB
  • After compression 9.7 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 17.4 kB, which is 29% 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 50.8 kB or 84% of the original size.

Image Optimization

-7%

Potential reduce by 60.9 kB

  • Original 836.6 kB
  • After minification 775.7 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. Bibliotheque Bordeaux images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 47 (64%)

Requests Now

73

After Optimization

26

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bibliotheque Bordeaux. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bibliotheque.bordeaux.fr accessibility score

72

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

ARIA input fields do not have accessible names

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

<frame> or <iframe> elements do not have a title

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

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

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

bibliotheque.bordeaux.fr best practices score

83

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

Page has valid source maps

SEO Factors

bibliotheque.bordeaux.fr SEO score

92

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

Image elements do not have [alt] attributes

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

    N/A

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bibliotheque.bordeaux.fr can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is French. Our system also found out that Bibliotheque.bordeaux.fr 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 Bibliotheque Bordeaux. 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: