Access b-volt.com. B-VOLT le spécialiste du kit vélo électrique et de la fabrication de batteries

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.088

92/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

www.b-volt.com

853 ms

global.css

294 ms

highdpi.css

265 ms

responsive-tables.css

307 ms

uniform.default.css

325 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 93% of them (88 requests) were addressed to the original B-volt.com, 3% (3 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain B-volt.com.

Content Size

2.5 MB

After Optimization

2.2 MB

In fact, the total size of B-volt.com main page is 2.5 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. 35% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 78.7 kB

Original 94.0 kB
After minification 79.9 kB
After compression 15.3 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 14.1 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 78.7 kB or 84% of the original size.

Image Optimization

-6%

Potential reduce by 122.0 kB

Original 2.1 MB
After minification 2.0 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. B VOLT images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 41.4 kB

Original 133.0 kB
After minification 129.2 kB
After compression 91.5 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 41.4 kB or 31% of the original size.

CSS Optimization

-43%

Potential reduce by 38.6 kB

Original 90.2 kB
After minification 85.0 kB
After compression 51.6 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. B-volt.com needs all CSS files to be minified and compressed as it can save up to 38.6 kB or 43% of the original size.

Requests Now

After Optimization

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of B VOLT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 36 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Search Engine Optimization Advices

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

High

Links are not crawlable

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 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 B-volt.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 B-volt.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

b-volt.com

Open Graph description is not detected on the main page of B VOLT. 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

B-VOLT le spécialiste du kit vélo électrique et de la fabrication de batteries - B-VOLT

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

www.b-volt.com

global.css

highdpi.css

responsive-tables.css

uniform.default.css

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

www.b-volt.com

global.css

highdpi.css

responsive-tables.css

uniform.default.css

jquery.fancybox.css

blockbanner.css

blockcart.css

jquery.bxslider.css

blockcategories.css

blockcurrencies.css

blockfacebook.css

blocklanguages.css

blockcontact.css

blockmyaccount.css

product_list.css

blocknewproducts.css

blocknewsletter.css

blocksearch.css

jquery.autocomplete.css

blockspecials.css

blocktags.css

blockuserinfo.css

blockviewed.css

homeslider.css

homefeatured.css

hooks.css

theme6.css

font3.css

blockwishlist.css

productcomments.css

blocktopmenu.css

superfish-modified.css

front.css

front.css

jquery-1.11.0.min.js

css

jquery-migrate-1.2.1.min.js

jquery.easing.js

tools.js

global.js

10-bootstrap.min.js

15-jquery.total-storage.min.js