Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

bm-grenoble.fr

Bibliothèque Municipale de Grenoble - Réseau des bibliothèques

Page Load Speed

5.2 sec in total

First Response

298 ms

Resources Loaded

4.1 sec

Page Rendered

851 ms

bm-grenoble.fr screenshot

About Website

Welcome to bm-grenoble.fr homepage info - get ready to check Bm Grenoble best content for France right away, or after learning these important things about bm-grenoble.fr

Portail de la Bibliothèque Municipale de Grenoble

Visit bm-grenoble.fr

Key Findings

We analyzed Bm-grenoble.fr page load time and found that the first response time was 298 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

bm-grenoble.fr performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value44.4 s

0/100

25%

SI (Speed Index)

Value23.2 s

0/100

10%

TBT (Total Blocking Time)

Value460 ms

62/100

30%

CLS (Cumulative Layout Shift)

Value1.631

0/100

15%

TTI (Time to Interactive)

Value40.7 s

0/100

10%

Network Requests Diagram

bm-grenoble.fr

298 ms

bm-grenoble.fr

600 ms

portal-front-all.js

486 ms

ComponentFactory.js

370 ms

portal-front-all.css

560 ms

Our browser made a total of 115 requests to load all elements on the main page. We found that 76% of them (87 requests) were addressed to the original Bm-grenoble.fr, 10% (12 requests) were made to Media.electre-ng.com and 5% (6 requests) were made to B.tile.openstreetmap.org. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Bm-grenoble.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (7%)

Content Size

17.5 MB

After Optimization

16.4 MB

In fact, the total size of Bm-grenoble.fr main page is 17.5 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 16.4 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 247.7 kB

  • Original 300.8 kB
  • After minification 261.6 kB
  • After compression 53.1 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 39.2 kB, which is 13% 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 247.7 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 881.6 kB

  • Original 16.4 MB
  • After minification 15.5 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. Bm Grenoble images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 23.8 kB

  • Original 626.1 kB
  • After minification 626.1 kB
  • After compression 602.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-6%

Potential reduce by 11.6 kB

  • Original 179.5 kB
  • After minification 179.5 kB
  • After compression 167.9 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 Breakdown

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

Requests Now

99

After Optimization

76

The browser has sent 99 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 11 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bm-grenoble.fr accessibility score

76

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

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

Image elements do not have [alt] attributes

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

bm-grenoble.fr best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

bm-grenoble.fr SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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

Open Graph data is detected on the main page of Bm Grenoble. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: