5.5 sec in total
334 ms
4.8 sec
354 ms
Welcome to zehnder-systems.de homepage info - get ready to check Zehnder Systems best content for Germany right away, or after learning these important things about zehnder-systems.de
Seit 1930 entwickelt Zehnder umfassende, energieeffiziente Raumklimasystemlösungen für Wohn- und Geschäftsgebäude. Erfahren Sie mehr über unsere komfortable Raumlüftung (Lüftungssysteme), Design-Heiz...
Visit zehnder-systems.deWe analyzed Zehnder-systems.de page load time and found that the first response time was 334 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
zehnder-systems.de performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value8.6 s
1/100
25%
Value4.2 s
77/100
10%
Value890 ms
32/100
30%
Value0
100/100
15%
Value8.3 s
39/100
10%
334 ms
1800 ms
214 ms
221 ms
211 ms
Our browser made a total of 75 requests to load all elements on the main page. We found that 84% of them (63 requests) were addressed to the original Zehnder-systems.de, 5% (4 requests) were made to Google-analytics.com and 3% (2 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Zehnder-systems.de.
Page size can be reduced by 1.3 MB (49%)
2.7 MB
1.3 MB
In fact, the total size of Zehnder-systems.de main page is 2.7 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. 65% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 262.1 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. 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 262.1 kB or 88% of the original size.
Potential reduce by 75.9 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. Zehnder Systems images are well optimized though.
Potential reduce by 666.3 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 666.3 kB or 76% of the original size.
Potential reduce by 307.1 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-systems.de needs all CSS files to be minified and compressed as it can save up to 307.1 kB or 85% of the original size.
Number of requests can be reduced by 26 (38%)
68
42
The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zehnder Systems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
zehnder-systems.de
334 ms
www.zehnder-systems.de
1800 ms
pace.min.js
214 ms
css_ogjvJnfni1_P_WxvXAHlUOgCs860b3ip9DNMapcIGeM.css
221 ms
css_EZ4Fof7UbPrE0BCQQqPwbpptsOSKMNV1-iNE876t758.css
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md1-data-img.jpg
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business-modern_large.png
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Runtal-Logo-home.png
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fbe7315f-4680-4300-b5ca-8baa628b47ca.woff
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analytics.js
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ga.js
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count.js
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zehnder-systems.de 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 IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
zehnder-systems.de SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
DE
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zehnder-systems.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Zehnder-systems.de 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.
zehnder-systems.de
Open Graph description is not detected on the main page of Zehnder Systems. 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: