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zehnder.fr screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

zehnder.fr

Solutions pour un climat ambiant optimal | Zehnder Group en France

Page Load Speed

3.8 sec in total

First Response

375 ms

Resources Loaded

2.8 sec

Page Rendered

575 ms

zehnder.fr screenshot

About Website

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

Zehnder est un fournisseur complet dont la gamme de produit s’étend des radiateurs décoratifs, convecteurs et panneaux chauffants aux systèmes qui garantissent un climat ambiant agréable et une ventil...

Visit zehnder.fr

Key Findings

We analyzed Zehnder.fr page load time and found that the first response time was 375 ms and then it took 3.4 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

zehnder.fr performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value860 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.121

84/100

15%

TTI (Time to Interactive)

Value8.4 s

38/100

10%

Network Requests Diagram

zehnder.fr

375 ms

zehnder.fr

386 ms

www.zehnder.fr

506 ms

fr

755 ms

gtm.js

75 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 85% of them (11 requests) were addressed to the original Zehnder.fr, 8% (1 request) were made to Googletagmanager.com and 8% (1 request) were made to Consent.cookiebot.eu. The less responsive or slowest element that took the longest time to load (755 ms) belongs to the original domain Zehnder.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 742.9 kB (86%)

Content Size

866.1 kB

After Optimization

123.3 kB

  • HTML
  • JavaScript

In fact, the total size of Zehnder.fr main page is 866.1 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. 20% of websites need less resources to load. HTML takes 831.6 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 733.6 kB

  • Original 831.6 kB
  • After minification 813.4 kB
  • After compression 98.0 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. 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 733.6 kB or 88% of the original size.

JavaScript Optimization

-27%

Potential reduce by 9.2 kB

  • Original 34.5 kB
  • After minification 34.5 kB
  • After compression 25.3 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 9.2 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (75%)

Requests Now

4

After Optimization

1

  • JavaScript

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zehnder. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zehnder.fr

zehnder.fr

375 ms

zehnder.fr

zehnder.fr

386 ms

www.zehnder.fr

www.zehnder.fr

506 ms

fr

fr

755 ms

gtm.js

gtm.js

75 ms

uc.js

uc.js

35 ms

runtime.161f386c.js

runtime.161f386c.js

382 ms

app.78886f81.js

app.78886f81.js

684 ms

HelveticaNowTextLight.4e4886d0.woff

HelveticaNowTextLight.4e4886d0.woff

569 ms

HelveticaNowText.de7868c6.woff

HelveticaNowText.de7868c6.woff

601 ms

HelveticaNowTextMedium.021ed70e.woff

HelveticaNowTextMedium.021ed70e.woff

312 ms

HelveticaNowTextBold.1616014e.woff

HelveticaNowTextBold.1616014e.woff

579 ms

zehnder.e3f21e7a.ttf

zehnder.e3f21e7a.ttf

641 ms

Accessibility Review

zehnder.fr accessibility score

87

Accessibility Issues

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

zehnder.fr 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

zehnder.fr SEO score

84

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 Zehnder.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 Zehnder.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

zehnder.fr

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