5.1 sec in total
958 ms
3.6 sec
590 ms
Welcome to vdi.de homepage info - get ready to check VDI best content for Germany right away, or after learning these important things about vdi.de
Rund 130.000 Ingenieurinnen und Ingenieure sind Mitglied im größten technisch-wissenschaftlichen Verein Europas, dem VDI.
Visit vdi.deWe analyzed Vdi.de page load time and found that the first response time was 958 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
vdi.de performance score
name
value
score
weighting
Value4.2 s
20/100
10%
Value13.5 s
0/100
25%
Value13.3 s
2/100
10%
Value1,090 ms
24/100
30%
Value0.141
78/100
15%
Value18.1 s
3/100
10%
958 ms
1075 ms
174 ms
264 ms
280 ms
Our browser made a total of 85 requests to load all elements on the main page. We found that 92% of them (78 requests) were addressed to the original Vdi.de, 4% (3 requests) were made to Plugins.flockler.com and 1% (1 request) were made to Consent.cookiebot.eu. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Vdi.de.
Page size can be reduced by 73.5 kB (8%)
953.6 kB
880.0 kB
In fact, the total size of Vdi.de main page is 953.6 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. 65% of websites need less resources to load. Images take 555.6 kB which makes up the majority of the site volume.
Potential reduce by 63.1 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 63.1 kB or 83% of the original size.
Potential reduce by 0 B
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. VDI images are well optimized though.
Potential reduce by 10.4 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. This website has mostly compressed JavaScripts.
Number of requests can be reduced by 63 (77%)
82
19
The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VDI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.
vdi.de
958 ms
www.vdi.de
1075 ms
croppie.css
174 ms
suggest.css
264 ms
Main.min.css
280 ms
slick.css
281 ms
ionicons.min.css
282 ms
datatables.min.css
280 ms
main.css
474 ms
admissionForm.css
352 ms
style_advent.css
367 ms
membershipForm.css
369 ms
Elevate.css
368 ms
newsletter.css
370 ms
ditForm.css
440 ms
app.css
456 ms
Main.css
457 ms
uc.js
32 ms
jquery.min.js
522 ms
jquery.autocomplete.min.js
381 ms
suggest_controller.js
521 ms
api.js
39 ms
js-cookie.js
521 ms
jquery-doubletapgo.min.js
521 ms
jquery-datepicker.min.js
535 ms
jquery-datepicker.de.js
520 ms
jquery-mousewheel.min.js
645 ms
jquery-autocomplete.min.js
647 ms
slick.min.js
648 ms
jquery-expander.min.js
644 ms
jquery.countdown.min.js
643 ms
bootstrap.bundle.min.js
652 ms
bootstrap-navbar.min.js
701 ms
bootstrap-select.min.js
704 ms
swiper.min.js
791 ms
lazysizes.min.js
702 ms
lightgallery-all.min.js
707 ms
Hyphenopoly_Loader.js
707 ms
datatables.min.js
879 ms
simplebar.min.js
800 ms
markerclustererplus.min.js
719 ms
membershipRegistration.js
628 ms
croppie.js
614 ms
exif.js
706 ms
Validation.min.js
705 ms
Femanager.min.js
703 ms
departments.js
637 ms
maps.js
620 ms
main.js
685 ms
countdown.js
686 ms
vdi-mediathek.js
687 ms
my-bookmarks.js
615 ms
events.js
600 ms
main.js
601 ms
publications.js
683 ms
gtm.js
177 ms
177057bc5ef004ad590abd45d61251c1
246 ms
mandatoryNewspaperCheckboxes.js
548 ms
hideFormIfAlreadySubscribed.js
545 ms
convertTextareaIfNeeded.js
545 ms
toggleMembership.js
545 ms
recaptcha__en.js
30 ms
scripts.js
533 ms
RepeatableContainer.js
615 ms
vdi_talentpool.js
618 ms
vdi-popup.js
512 ms
vdi.woff
514 ms
csm_Kosten_Klimaschutz_BELL_KA_PANG_shutterstock_1738022447_5a448ea08b.jpg
619 ms
csm_Publikationen-Zeitschriften-785666224_da4c90b5b0.jpg
616 ms
csm_Netzwerken_RGB_2024_GettyImages_10_000_Hours_1340725969_a6a5684fc5.jpg
669 ms
csm_Technik_aufs_Ohr_3827fe3fc0.jpg
574 ms
177057bc5ef004ad590abd45d61251c1
109 ms
csm_csm_VDIn_Abo2023_Packshots_meinVDI_1920x560px_81325321d4_ef7297b496.jpg
628 ms
csm_Gruppe_NDAB_Creativity_shutterstock_4109ff079b.jpg
715 ms
csm_Oekobilanz_PKW_2023_Keyvisual_RGB_GettyImages_SimonSkafar_gespiegelt_eeb00b34a9.jpg
628 ms
csm_Keyvisual_Mediathek_2023_RGB_GettyImages_Westend61_709129627_kleiner_bcce014c9f.jpg
710 ms
Brueckentage.svg
624 ms
Mitglieder.svg
618 ms
Icons_RefreshTeamwork.svg
618 ms
Internationale_Projekte.svg
617 ms
Icons_RefreshMeeting.svg
618 ms
blank.gif
700 ms
embed-wall_v2.js
405 ms
csm_Meeting_2023_RGB_PeopleImages.com_-_Yuri_A_shutterstock_2190358159_kleiner_e046555fe0.jpg
610 ms
csm_Starkregen_NoSystem_Images_2024_GettyImages-1256057435__1ba8b8bbf2.jpg
209 ms
vdi.de 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.
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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
vdi.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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
vdi.de SEO score
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 Vdi.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 Vdi.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.
vdi.de
Open Graph data is detected on the main page of VDI. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: