2.8 sec in total
292 ms
2.4 sec
115 ms
Visit zeiss.fr now to see the best up-to-date ZEISS content for Morocco and also check out these interesting facts you probably never knew about zeiss.fr
ZEISS est une entreprise technologique de premier plan à l'échelle internationale opérant dans les domaines de l’optique et de l'optoélectronique.
Visit zeiss.frWe analyzed Zeiss.fr page load time and found that the first response time was 292 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
zeiss.fr performance score
name
value
score
weighting
Value2.4 s
71/100
10%
Value10.2 s
0/100
25%
Value9.0 s
14/100
10%
Value4,790 ms
0/100
30%
Value0.002
100/100
15%
Value13.0 s
12/100
10%
292 ms
474 ms
204 ms
313 ms
307 ms
Our browser made a total of 31 requests to load all elements on the main page. We found that 87% of them (27 requests) were addressed to the original Zeiss.fr, 10% (3 requests) were made to Google-analytics.com and 3% (1 request) were made to Assets.adobedtm.com. The less responsive or slowest element that took the longest time to load (844 ms) belongs to the original domain Zeiss.fr.
Page size can be reduced by 662.8 kB (63%)
1.1 MB
390.1 kB
In fact, the total size of Zeiss.fr main page is 1.1 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. 30% of websites need less resources to load. Javascripts take 642.9 kB which makes up the majority of the site volume.
Potential reduce by 36.2 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. This page needs HTML code to be minified as it can gain 8.3 kB, which is 19% 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 36.2 kB or 82% of the original size.
Potential reduce by 28.1 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. Obviously, ZEISS needs image optimization as it can save up to 28.1 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 435.9 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 435.9 kB or 68% of the original size.
Potential reduce by 162.5 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. Zeiss.fr needs all CSS files to be minified and compressed as it can save up to 162.5 kB or 82% of the original size.
Number of requests can be reduced by 9 (36%)
25
16
The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZEISS. 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.
zeiss.fr
292 ms
www.zeiss.fr
474 ms
home.html
204 ms
zeiss-corporate.css
313 ms
zeiss-corporate.css2.css
307 ms
zeiss-corporate.domino.css
324 ms
zeiss-corporate.js
844 ms
zeiss-corporate.js2.js
424 ms
satelliteLib-6c587e49b31d4f59883905c2bab3b0ee1a03ebb2.js
22 ms
analytics.js
28 ms
zeiss.logo.png
104 ms
language-switch-sprite.png
109 ms
icon.lupe.png
101 ms
menu_backbutton.png
106 ms
future-moment.jpg
350 ms
future-moment.jpg
205 ms
did-you-know_128.jpg
422 ms
did-you-know_128.jpg
210 ms
icon.facebook.png
207 ms
icon.twitter.png
211 ms
icon.gplus.png
302 ms
linklist_internal_link.gif
300 ms
nav.footer.png
301 ms
0bff5a93-ce9b-4468-9a94-431fb03301d0.woff
403 ms
f90b67e0-ac70-41c5-9f16-d837fa32d424.woff
586 ms
collect
38 ms
collect
36 ms
link_black.gif
371 ms
5beb2de5-f02e-4d93-95f9-8dae06b289d8.woff
471 ms
stage.level.indicator.png
378 ms
back-to-top.png
437 ms
zeiss.fr accessibility score
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
[aria-*] attributes do not match their roles
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
zeiss.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
zeiss.fr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
Document uses legible font sizes
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zeiss.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 Zeiss.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.
zeiss.fr
Open Graph description is not detected on the main page of ZEISS. 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: