Tools & Wizards About Us

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

zilten.com

Porte d'entrée Zilten | Fabricant français de portes d'entrée

Page Load Speed

4.6 sec in total

First Response

290 ms

Resources Loaded

4 sec

Page Rendered

295 ms

About Website

Click here to check amazing Zilten content for France. Otherwise, check out these important facts you probably never knew about zilten.com

Fabricant français de portes d'entrée au design singulier, Zilten vous propose 190 modèles de portes multi-matériaux pour votre maison : Alu, bois, acier, PVC et mixte.

Visit zilten.com

Key Findings

We analyzed Zilten.com page load time and found that the first response time was 290 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

zilten.com performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.7

7/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

zilten.com

290 ms

www.zilten.com

1363 ms

jcemediabox.css

181 ms

style.css

266 ms

styles.css

483 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 91% of them (86 requests) were addressed to the original Zilten.com, 2% (2 requests) were made to Google.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Zilten.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 347.6 kB (42%)

Content Size

835.2 kB

After Optimization

487.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zilten.com main page is 835.2 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. 40% of websites need less resources to load. Images take 382.6 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 62.5 kB

  • Original 75.6 kB
  • After minification 65.9 kB
  • After compression 13.1 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 9.8 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 62.5 kB or 83% of the original size.

Image Optimization

-5%

Potential reduce by 17.8 kB

  • Original 382.6 kB
  • After minification 364.9 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. Zilten images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 213.7 kB

  • Original 312.9 kB
  • After minification 275.8 kB
  • After compression 99.3 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 213.7 kB or 68% of the original size.

CSS Optimization

-84%

Potential reduce by 53.7 kB

  • Original 64.0 kB
  • After minification 48.8 kB
  • After compression 10.4 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. Zilten.com needs all CSS files to be minified and compressed as it can save up to 53.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 53 (57%)

Requests Now

93

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 93 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zilten. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

zilten.com accessibility score

79

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

Buttons do not have an accessible name

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.

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 IDs are not unique

Best Practices

zilten.com 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

SEO Factors

zilten.com SEO score

100

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zilten.com can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Zilten.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

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