1 sec in total
305 ms
652 ms
86 ms
Visit bnf.fr now to see the best up-to-date BnF content for France and also check out these interesting facts you probably never knew about bnf.fr
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Visit bnf.frWe analyzed Bnf.fr page load time and found that the first response time was 305 ms and then it took 738 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.
bnf.fr performance score
name
value
score
weighting
Value8.9 s
0/100
10%
Value15.6 s
0/100
25%
Value16.8 s
0/100
10%
Value2,280 ms
5/100
30%
Value0.232
54/100
15%
Value26.1 s
0/100
10%
305 ms
346 ms
Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Bnf.fr and no external sources were called. The less responsive or slowest element that took the longest time to load (346 ms) belongs to the original domain Bnf.fr.
Page size can be reduced by 153 B (61%)
251 B
98 B
In fact, the total size of Bnf.fr main page is 251 B. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. HTML takes 251 B which makes up the majority of the site volume.
Potential reduce by 153 B
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 143 B, which is 57% 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 153 B or 61% of the original size.
We found no issues to fix!
0
0
Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.
bnf.fr
305 ms
www.bnf.fr
346 ms
bnf.fr accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
bnf.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
bnf.fr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
FR
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bnf.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Bnf.fr main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
bnf.fr
Open Graph description is not detected on the main page of 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: