Access zehnder.fr. Solutions pour un climat ambiant optimal

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value20.6 s

0/100

25%

SI (Speed Index)

Value14.7 s

1/100

10%

TBT (Total Blocking Time)

Value21,170 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value28.9 s

0/100

10%

zehnder.fr

303 ms

www.zehnder.fr

1259 ms

pace.min.js

200 ms

css_ogjvJnfni1_P_WxvXAHlUOgCs860b3ip9DNMapcIGeM.css

204 ms

css_EZ4Fof7UbPrE0BCQQqPwbpptsOSKMNV1-iNE876t758.css

428 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 88% of them (61 requests) were addressed to the original Zehnder.fr, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Static.hotjar.com. The less responsive or slowest element that took the longest time to load (5.2 sec) belongs to the original domain Zehnder.fr.

Content Size

3.2 MB

After Optimization

1.8 MB

In fact, the total size of Zehnder.fr main page is 3.2 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. 60% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 153.9 kB

Original 181.1 kB
After minification 175.7 kB
After compression 27.2 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 153.9 kB or 85% of the original size.

Image Optimization

-6%

Potential reduce by 98.3 kB

Original 1.6 MB
After minification 1.5 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. Zehnder images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 804.9 kB

Original 1.0 MB
After minification 782.6 kB
After compression 216.7 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 804.9 kB or 79% of the original size.

CSS Optimization

-85%

Potential reduce by 299.7 kB

Original 352.6 kB
After minification 345.2 kB
After compression 52.9 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. Zehnder.fr needs all CSS files to be minified and compressed as it can save up to 299.7 kB or 85% of the original size.

Requests Now

After Optimization

The browser has sent 63 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 13 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 usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA IDs are not unique

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Solutions pour un climat ambiant optimal | Zehnder Group en France

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

zehnder.fr

www.zehnder.fr

pace.min.js

css_ogjvJnfni1_P_WxvXAHlUOgCs860b3ip9DNMapcIGeM.css

css_EZ4Fof7UbPrE0BCQQqPwbpptsOSKMNV1-iNE876t758.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

zehnder.fr

www.zehnder.fr

pace.min.js

css_ogjvJnfni1_P_WxvXAHlUOgCs860b3ip9DNMapcIGeM.css

css_EZ4Fof7UbPrE0BCQQqPwbpptsOSKMNV1-iNE876t758.css

css_u9Cn6xFPfn6NvRqMGUV6k10stVTR4AGT7eontS75hX4.css

css_5D0QP8uD-Y9y5NMBmcfwtSKkpRzC1A-K5YxXmYCMMV0.css

css_Z38titKRnwKXjVdgUBwESJ12VQH-GLV0qVq74bso4R0.css

css_5g9lYG1KmC5tj1pE7HuhrCKzzFd71Agf_A95MmQmkjY.css

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js_rL9lnya6mskRWybCJXHbP_jgX370Ur-OM91es6GdtUc.js

hotjar-23363.js

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