Access bm-grenoble.fr. Bibliothèque Municipale de Grenoble

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value220 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.09

92/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

bm-grenoble.fr

359 ms

www.bm-grenoble.fr

578 ms

ga.js

68 ms

yahoo-dom-event.js

306 ms

animation-min.js

339 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 80% of them (100 requests) were addressed to the original Bm-grenoble.fr, 14% (18 requests) were made to V.calameo.com and 2% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (797 ms) belongs to the original domain Bm-grenoble.fr.

Content Size

574.8 kB

After Optimization

504.9 kB

In fact, the total size of Bm-grenoble.fr main page is 574.8 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 343.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 56.4 kB

Original 68.3 kB
After minification 49.4 kB
After compression 12.0 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 18.9 kB, which is 28% 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 56.4 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 8.1 kB

Original 343.3 kB
After minification 335.2 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. Bm Grenoble images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 3.3 kB

Original 100.3 kB
After minification 100.3 kB
After compression 97.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 2.1 kB

Original 62.9 kB
After minification 62.9 kB
After compression 60.8 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. Bm-grenoble.fr has all CSS files already compressed.

Requests Now

107

After Optimization

The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bm Grenoble. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

robots.txt is not valid

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/).

High

Document doesn't use 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 Bm-grenoble.fr 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 Bm-grenoble.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

bm-grenoble.fr

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Bibliothèque Municipale de Grenoble - Réseau des bibliothèques

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

bm-grenoble.fr

www.bm-grenoble.fr

ga.js

yahoo-dom-event.js

animation-min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

bm-grenoble.fr

www.bm-grenoble.fr

ga.js

yahoo-dom-event.js

animation-min.js

formCtrl.js

formCtrl-fo.js

formCtrl-fr.js

jquery-1.5.2.min.js

jquery.colorbox-min.js

core.js

script.js

jquery.cookie.js

menu.js

rotationAccueil.js

default.css

default.css

colorbox.css

__utm.gif

closeCookieCNIL.png

retour.jpg

logo.png

flashInfos_fond.png

menu_N1_fond.png

home.png

separateurMenu.png

menu_N2_fond.gif

3934_090__DSC6788.jpg

23939_999_maison-de-la-montagne.jpg

26075_772_Logo-Slider-Site-BMG-600x400.jpg

26228_911_Slider-Site-BMG-600x400.jpg

11980_142_basepresse.jpg

20258_100_logo_eurekoi_accroche.png

4351_200_3223722_web.jpg

25413_546_numotheque.jpg

26113_895_SOS-Numotheque-Slider-Site-BMG-600x400.jpg

26385_036_MPL-Slider-Site-BMG-600x400.jpg

26006_440_Dans-les-poches-Animation.jpg

26345_933_SOS-Num-Slider-Site-BMG-600x400.jpg

26343_345_Club-lecture-Slider-Site-BMG-600x400.jpg

26356_265_Saisons-du-livre-Slider-Site-BMG-600x400.jpg

26362_183_Conf-2-Slider-Site-BMG-600x400.jpg

26357_459_Musique-Slider-Site-BMG-600x400.jpg