3.5 sec in total
193 ms
2.9 sec
377 ms
Welcome to velux.ch homepage info - get ready to check VELUX best content for Switzerland right away, or after learning these important things about velux.ch
VELUX ist der weltweit grösste Hersteller von Dachfenstern aller Art ▶ Entdecken Sie unser umfangreiches Sortiment!
Visit velux.chWe analyzed Velux.ch page load time and found that the first response time was 193 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
velux.ch performance score
name
value
score
weighting
Value5.0 s
9/100
10%
Value7.6 s
4/100
25%
Value7.4 s
27/100
10%
Value5,640 ms
0/100
30%
Value0.027
100/100
15%
Value20.2 s
2/100
10%
193 ms
975 ms
341 ms
181 ms
208 ms
Our browser made a total of 63 requests to load all elements on the main page. We found that 86% of them (54 requests) were addressed to the original Velux.ch, 6% (4 requests) were made to Google-analytics.com and 5% (3 requests) were made to Track.adform.net. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Velux.ch.
Page size can be reduced by 693.7 kB (28%)
2.5 MB
1.8 MB
In fact, the total size of Velux.ch main page is 2.5 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. 70% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.
Potential reduce by 115.0 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. This page needs HTML code to be minified as it can gain 52.9 kB, which is 41% 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 115.0 kB or 89% of the original size.
Potential reduce by 358.6 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, VELUX needs image optimization as it can save up to 358.6 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 71.2 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 71.2 kB or 55% of the original size.
Potential reduce by 148.9 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. Velux.ch needs all CSS files to be minified and compressed as it can save up to 148.9 kB or 86% of the original size.
Number of requests can be reduced by 18 (31%)
58
40
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VELUX. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
velux.ch
193 ms
www.velux.ch
975 ms
screen.min.css
341 ms
velux-components.min.css
181 ms
extended.min.css
208 ms
shadowbox.css
186 ms
common.min.js
449 ms
components.min.js
252 ms
ai.0.js
131 ms
site-bg.png
113 ms
header-bottom-bg.png
173 ms
velux%20logo.png
113 ms
velux-sprite.png
289 ms
bg_global_menu.png
114 ms
velux-schwingfenster-ggu-illu-300x300.png
229 ms
cvp.png
274 ms
velux-flachdachfenster-flachglas-cfp-illu-stoerer-neu.png
437 ms
blackout-1100.png
482 ms
remotecontrol_programs_116039%2001_300x300.png
386 ms
twr.png
424 ms
velux_fensteraustausch_109291_940x940.jpg
384 ms
top%20operated%202%20940x470.jpg
402 ms
aftersales_111143%2001_940x470.jpg
495 ms
velux-beratung-940x940.jpg
492 ms
velux%20inspirations%20940x1394.png
683 ms
velux-service-kontakt-telefon-frau-940x470.jpg
582 ms
velux-pflege-wartung-dachfenster-scharnier-fetten-940x470.jpg
542 ms
replacement_119761%2001_940x940.jpg
613 ms
10528301xxl%201%20spareparts940x470.jpg
603 ms
press%20contact_940x470.jpg
595 ms
pre%20header%20moss.jpg
651 ms
velux%20shop%20940x940.png
811 ms
velux-klappschwingfenster-gpu-frau-1280x458.jpg
849 ms
cvp%20interior%20120299%2001%20hero_1280x458.jpg
771 ms
roman%20blind_121209%2001_1280x458.jpg
901 ms
integra_control_pad_115264%2001%20hero_1280x420.jpg
864 ms
icon-chevron-left-white.png
773 ms
icon-chevron-right-white.png
858 ms
velux_replacement_220x220.jpg
883 ms
velux-kundendiensttechniker-wartung-940x940.jpg
1000 ms
velux-beratung-940x940.jpg
1107 ms
velux%20shop%20940x940.png
1283 ms
social%20media%20940x940.png
1144 ms
icon-chevron-small-right.png
974 ms
485 ms
gtm.js
71 ms
flat%20roof_klein.jpg
982 ms
120289%2001%20xxl_940x940.jpg
1003 ms
VeluxGothic-Light.woff
1074 ms
analytics.js
24 ms
VeluxGothic-Regular.woff
1037 ms
linkid.js
6 ms
collect
12 ms
collect
14 ms
VeluxGothic-Bold.woff
981 ms
dealer_installer_110106%2001_940x470.jpg
983 ms
icon-toggle-plus.png
970 ms
signature%20d%20black.png
909 ms
icon-rotator-nav-red.png
903 ms
icon-rotator-nav-light.png
896 ms
230 ms
117 ms
print.min.css
90 ms
velux.ch accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
velux.ch best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
velux.ch 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
Tap targets are not sized appropriately
DE
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Velux.ch can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Velux.ch 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.
velux.ch
Open Graph description is not detected on the main page of VELUX. 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: