Tools & Wizards About Us

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

spectra.fr

SPECTRA | Acoustique et Insonorisation Industrielle

Page Load Speed

3.9 sec in total

First Response

317 ms

Resources Loaded

3.4 sec

Page Rendered

215 ms

About Website

Click here to check amazing SPECTRA content for France. Otherwise, check out these important facts you probably never knew about spectra.fr

Spectra élabore des solutions de traitement acoustique optimisées en intégrant vos contraintes ergonomiques et vos objectifs de réduction sonore.

Visit spectra.fr

Key Findings

We analyzed Spectra.fr page load time and found that the first response time was 317 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

spectra.fr performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.308

38/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

spectra.fr

317 ms

www.spectra.fr

209 ms

www.spectra.fr

1461 ms

tarteaucitron.js

199 ms

style.css

283 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 82% of them (47 requests) were addressed to the original Spectra.fr, 5% (3 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Spectra.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 150.3 kB (18%)

Content Size

842.6 kB

After Optimization

692.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Spectra.fr main page is 842.6 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. 35% of websites need less resources to load. Images take 579.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 64.9 kB

  • Original 79.2 kB
  • After minification 72.9 kB
  • After compression 14.3 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 64.9 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 43.0 kB

  • Original 579.1 kB
  • After minification 536.2 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. SPECTRA images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 30.3 kB

  • Original 138.5 kB
  • After minification 137.7 kB
  • After compression 108.2 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 30.3 kB or 22% of the original size.

CSS Optimization

-27%

Potential reduce by 12.2 kB

  • Original 45.8 kB
  • After minification 45.7 kB
  • After compression 33.5 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. Spectra.fr needs all CSS files to be minified and compressed as it can save up to 12.2 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (42%)

Requests Now

50

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SPECTRA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

spectra.fr accessibility score

91

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

spectra.fr best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

spectra.fr SEO score

90

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

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 Spectra.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 Spectra.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 SPECTRA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: