Tools & Wizards About Us
bibliographique.com screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    86% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

bibliographique.com

Librairie Christophe Hüe - Livres anciens - Paris

Page Load Speed

4.5 sec in total

First Response

269 ms

Resources Loaded

3.1 sec

Page Rendered

1.1 sec

bibliographique.com screenshot

About Website

Click here to check amazing Bibliographique content for France. Otherwise, check out these important facts you probably never knew about bibliographique.com

Notre librairie est spécialisée en livres anciens et modernes, livres rares et livres illustrés, bibliophilie et éditions originales. Librairie en ligne, sur rendez-vous à Paris ou par correspondance.

Visit bibliographique.com

Key Findings

We analyzed Bibliographique.com page load time and found that the first response time was 269 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

bibliographique.com performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

33/100

25%

SI (Speed Index)

Value3.9 s

83/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

bibliographique.com

269 ms

www.bibliographique.com

897 ms

style.css

179 ms

OpenLayers.js

752 ms

b2.js

171 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 71% of them (30 requests) were addressed to the original Bibliographique.com, 5% (2 requests) were made to A.tile.openstreetmap.org and 5% (2 requests) were made to B.tile.openstreetmap.org. The less responsive or slowest element that took the longest time to load (920 ms) relates to the external source C.tile.openstreetmap.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 899.7 kB (38%)

Content Size

2.4 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bibliographique.com main page is 2.4 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. 20% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 37.9 kB

  • Original 48.3 kB
  • After minification 48.1 kB
  • After compression 10.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 37.9 kB or 79% of the original size.

Image Optimization

-17%

Potential reduce by 261.0 kB

  • Original 1.5 MB
  • After minification 1.2 MB

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. Obviously, Bibliographique needs image optimization as it can save up to 261.0 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 581.9 kB

  • Original 788.4 kB
  • After minification 788.2 kB
  • After compression 206.4 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 581.9 kB or 74% of the original size.

CSS Optimization

-81%

Potential reduce by 18.9 kB

  • Original 23.1 kB
  • After minification 20.0 kB
  • After compression 4.3 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. Bibliographique.com needs all CSS files to be minified and compressed as it can save up to 18.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (24%)

Requests Now

38

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bibliographique. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

bibliographique.com

bibliographique.com

269 ms

www.bibliographique.com

www.bibliographique.com

897 ms

style.css

style.css

179 ms

OpenLayers.js

OpenLayers.js

752 ms

b2.js

b2.js

171 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

26 ms

css

css

23 ms

gplus-16.png

gplus-16.png

26 ms

caracteres_imprimerie_librairie.jpg

caracteres_imprimerie_librairie.jpg

514 ms

maroquin_bleu_nuit.jpg

maroquin_bleu_nuit.jpg

87 ms

search_book.png

search_book.png

82 ms

accueil_librairie_livres_anciens.jpg

accueil_librairie_livres_anciens.jpg

88 ms

contact.jpg

contact.jpg

166 ms

commande_livre.jpg

commande_livre.jpg

163 ms

facebook.png

facebook.png

168 ms

twitter.png

twitter.png

169 ms

rss.png

rss.png

170 ms

reliures-anciennes.jpg

reliures-anciennes.jpg

320 ms

6279_1_2.jpg

6279_1_2.jpg

644 ms

loupe.png

loupe.png

252 ms

6278_1_2.jpg

6278_1_2.jpg

411 ms

6269_1_2.jpg

6269_1_2.jpg

663 ms

6263_1_2.jpg

6263_1_2.jpg

763 ms

6270_1_2.jpg

6270_1_2.jpg

794 ms

6265_1_2.jpg

6265_1_2.jpg

500 ms

6253_1_2.jpg

6253_1_2.jpg

664 ms

6244_1_2.jpg

6244_1_2.jpg

684 ms

6236_1_2.jpg

6236_1_2.jpg

884 ms

kml_feed_small.png

kml_feed_small.png

743 ms

ornement_livre_ancien.jpg

ornement_livre_ancien.jpg

749 ms

Vu9Dx8oyiuqEkuIyR3OPDQ.ttf

Vu9Dx8oyiuqEkuIyR3OPDQ.ttf

35 ms

style.css

style.css

729 ms

marker.png

marker.png

766 ms

22540.png

22540.png

337 ms

22540.png

22540.png

536 ms

22541.png

22541.png

313 ms

22541.png

22541.png

608 ms

22540.png

22540.png

918 ms

22541.png

22541.png

920 ms

ga.js

ga.js

30 ms

ajouter_au_panier.gif

ajouter_au_panier.gif

87 ms

__utm.gif

__utm.gif

11 ms

Accessibility Review

bibliographique.com accessibility score

80

Accessibility Issues

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

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.

Best Practices

bibliographique.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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

bibliographique.com SEO score

98

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

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bibliographique.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 Bibliographique.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

bibliographique.com

Open Graph description is not detected on the main page of Bibliographique. 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: