Report Summary

  • 59

    Performance

    Renders faster than
    75% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

authentification.bnf.fr

BnF : Connexion à l'espace personnel

Page Load Speed

2.6 sec in total

First Response

295 ms

Resources Loaded

2.2 sec

Page Rendered

109 ms

authentification.bnf.fr screenshot

About Website

Click here to check amazing Authentification BnF content for France. Otherwise, check out these important facts you probably never knew about authentification.bnf.fr

Visit authentification.bnf.fr

Key Findings

We analyzed Authentification.bnf.fr page load time and found that the first response time was 295 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

authentification.bnf.fr performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value3,310 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

authentification.bnf.fr

295 ms

login

116 ms

screen.css

95 ms

dialog_ui.css

210 ms

jquery-1.4.2.js

501 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Authentification.bnf.fr and no external sources were called. The less responsive or slowest element that took the longest time to load (680 ms) belongs to the original domain Authentification.bnf.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.4 kB (70%)

Content Size

7.7 kB

After Optimization

2.3 kB

In fact, the total size of Authentification.bnf.fr main page is 7.7 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. 15% of websites need less resources to load. HTML takes 7.7 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 5.4 kB

  • Original 7.7 kB
  • After minification 6.6 kB
  • After compression 2.3 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 1.1 kB, which is 15% 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 5.4 kB or 70% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (23%)

Requests Now

26

After Optimization

20

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

Accessibility Review

authentification.bnf.fr accessibility score

91

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 are not valid or misspelled

Best Practices

authentification.bnf.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

Missing source maps for large first-party JavaScript

SEO Factors

authentification.bnf.fr SEO score

90

Search Engine Optimization Advices

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

    FR

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Authentification.bnf.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed English language. Our system also found out that Authentification.bnf.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 Authentification BnF. 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: