6.2 sec in total
334 ms
5.7 sec
154 ms
Visit vde.de now to see the best up-to-date VDE content and also check out these interesting facts you probably never knew about vde.de
Weltweites Expertennetzwerk aus Wissenschaft und Industrie, zu aktuellen Technologie-Themen und rund um Elektrotechnik. Wir setzen Standards, prüfen und zertifizieren Produkte.
Visit vde.deWe analyzed Vde.de page load time and found that the first response time was 334 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
vde.de performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value14.4 s
0/100
25%
Value22.8 s
0/100
10%
Value16,500 ms
0/100
30%
Value0.444
21/100
15%
Value30.1 s
0/100
10%
334 ms
290 ms
109 ms
2664 ms
284 ms
Our browser made a total of 77 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Vde.de, 95% (73 requests) were made to Vde.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source Vde.com.
Page size can be reduced by 1.2 MB (59%)
2.0 MB
827.5 kB
In fact, the total size of Vde.de main page is 2.0 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. 35% of websites need less resources to load. Images take 916.3 kB which makes up the majority of the site volume.
Potential reduce by 53.8 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 8.7 kB, which is 12% 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 53.8 kB or 75% of the original size.
Potential reduce by 344.7 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, VDE needs image optimization as it can save up to 344.7 kB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 636.9 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 636.9 kB or 75% of the original size.
Potential reduce by 136.9 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. Vde.de needs all CSS files to be minified and compressed as it can save up to 136.9 kB or 85% of the original size.
Number of requests can be reduced by 32 (48%)
67
35
The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VDE. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
vde.de
334 ms
www.vde.com
290 ms
109 ms
Homepage.aspx
2664 ms
controls.css
284 ms
HtmlEditorCustomStyles.css
192 ms
HtmlEditorTableFormats.css
376 ms
core.css
656 ms
VDECentral.css
191 ms
SocialBookmarks.js
285 ms
init.js
790 ms
non_ie.js
747 ms
core.css
189 ms
masterpage.css
280 ms
pagelayout.css
565 ms
fixups.css
367 ms
forms.css
378 ms
imageGallery.css
469 ms
print.css
520 ms
WebResource.axd
483 ms
ScriptResource.axd
448 ms
ScriptResource.axd
521 ms
jquery.js
723 ms
jquery.tools.js
739 ms
core.js
772 ms
search.js
492 ms
vde_logo_weiss_117x27.gif
110 ms
button_search.gif
112 ms
icon_printer.gif
223 ms
icon_letter.gif
246 ms
button_login_2.gif
272 ms
keyvisual_vde.jpg
589 ms
WebResource.axd
385 ms
VDE-Politikbrief_378x106.jpg
345 ms
arrow_red.gif
342 ms
20160314cebit06_topstory.jpg
373 ms
20160314cebit01_378x106.jpg
464 ms
vde_eventMedia.ashx
1850 ms
Ansgar-Hinz_378x106.jpg
533 ms
160113_Normung%20und%20Industrie%204%200_96dp_378x106i%20(48%20von%2071).jpg
474 ms
dialog-1-2016-Web-PDF_378x106.jpg
480 ms
Smart-Grid_378x106.jpg
524 ms
Inustrie-4.0_378x106.jpg
657 ms
MedTech_378x106.jpg
760 ms
VDE_Young_Professionals_378x106.jpg
629 ms
WiWo-BtB-Adaption-eMagazin-Banner_378x106.jpg
662 ms
378x106Innovationen.jpg
660 ms
rss-icon16x16.png
683 ms
vde_institut_182x60.jpg
728 ms
iStock_000008462068_Large_182x60.jpg
758 ms
mitgliedschaft_182x60.jpg
760 ms
VDE_Kongress_2016_57x48.jpg
761 ms
iec_57x48.jpg
791 ms
ECOC_2016_logo_115.gif
830 ms
hm_57x48.jpg
856 ms
VDE_vdesiegel_57x48.jpg
861 ms
Studien_57x48.jpg
855 ms
analytics.js
21 ms
gepruefte_Produkte.png
841 ms
collect
16 ms
collect
62 ms
Zeichenmissbrauch.png
792 ms
vde-pruefsiegel.gif
820 ms
back_body.gif
692 ms
texbox_search_back.gif
694 ms
back_login.gif
695 ms
slide_inaktiv.gif
706 ms
VDE-Politikbrief_378x106.jpg
774 ms
20160314cebit06_topstory.jpg
658 ms
slide_aktiv.gif
534 ms
160113_Normung%20und%20Industrie%204%200_96dp_378x106i%20(48%20von%2071).jpg
992 ms
dialog-1-2016-Web-PDF_378x106.jpg
874 ms
378x106Innovationen.jpg
599 ms
sb_facebook.png
97 ms
sb_twitter.png
100 ms
sb_youtube.png
100 ms
icon_info.gif
100 ms
vde.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-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
Buttons do not have an accessible name
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
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.
vde.de 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
vde.de SEO score
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
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vde.de can be misinterpreted by Google and other search engines. Our service has detected that German 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 Vde.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
vde.de
Open Graph description is not detected on the main page of VDE. 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: