VDI.DE Verein Deutscher Ingenieure e.V. | VDI

vdi.de Website Information

Daily Unique Visits: 62,301

Daily Page Views: 373,806

Income Per Day: $748

Estimated Value: $538,560

This website is located in Germany and is using following IP address 194.245.143.90. See the complete list of popular websites hosted in Germany.

vdi.de is registered under .DE top-level domain. Please check other sites in .DE zone.

Website vdi.de is using the following name servers:

  • a.ns.nrw.net
  • b.ns.nrw.net
  • c.ns.nrw.net

and is probably hosted by CSL Computer Service Langenbach GmbH. See the full list of other websites hosted by CSL Computer Service Langenbach GmbH.

The highest website vdi.de position in Alexa rank database was 18940 and the lowest rank position was 920685. Current position of vdi.de in Alexa rank database is 23021.

Desktop speed score of vdi.de (40/100) is better than the results of 14.88% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of vdi.de (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of vdi.de (34/100) is better than the results of 12.98% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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vdi.de Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


vdi.de whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


Domain: vdi.de
Status: connect

vdi.de server information

Servers Location

vdi.de desktop page speed rank

Last tested: 2017-05-24


Desktop Speed Bad
40/100

vdi.de Desktop Speed Test Quick Summary


priority - 54Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 528.8KiB (74% reduction).

Compressing https://www.vdi.de/fileadmin/vdi_de/news_bilder/Pr…tsmodelle__483x241.jpg could save 85.2KiB (75% reduction).
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Compressing https://www.vdi.de/fileadmin/_processed_/csm_VDI_6…300x300_97a8466dd0.jpg could save 20.5KiB (71% reduction).
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Compressing https://www.vdi.de/fileadmin/_processed_/csm_Werta…700x700_a315840a05.jpg could save 15.2KiB (67% reduction).
Compressing https://www.vdi.de/fileadmin/_processed_/csm_statu…aud2web_ee5c3468e9.jpg could save 10.7KiB (49% reduction).
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Compressing https://www.vdi.de/fileadmin/templates/img/bg_footer.gif could save 1.4KiB (71% reduction).
Compressing https://www.vdi.de/fileadmin/templates/img/social/google_20x20.png could save 906B (49% reduction).
Compressing https://www.vdi.de/fileadmin/templates/img/social/xing_20x20.png could save 891B (48% reduction).
Compressing https://www.vdi.de/fileadmin/templates/img/social/linkedin_20x20.png could save 879B (57% reduction).
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priority - 45Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://www.vdi.de/fileadmin/_processed_/csm_5168_Teeglaeser_d17562175d.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_6490_…0x700px_fbe37f0b25.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Banne…2011_lo_7face195be.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Bild_…700x700_1e8ecae2c0.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_DRIVE-E_2017_033d076603.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Elphi__087116431b.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Foto_…300_300_f4f06ab367.png (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Fraue…urberuf_00ab5855d7.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Jahre…700x700_2ff8aede1b.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_KeyVi…_Kasten_7dd87ea0f4.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_MedCo…o-quadr_521a6ffcae.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Mitgl…quadrat_3db7c92314.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Richt…0x70042_42a1b75ab2.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_SuJ-K…quadrat_ac44b51d26.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_VDI-E…M.Kumar_6234fa29d2.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_VDI_6…300x300_97a8466dd0.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Werta…700x700_a315840a05.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_Werta…_im_VDI_691fdbeeae.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm__Q1A6…e-klein_97549e6230.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_anfah…haus200_778db5317a.png (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_blog_…rtseite_fd839b3192.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_leitb…483x241_cd00528ff2.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_link_…vdi_neu_630284806b.png (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_link_…den_neu_9aab2bcd5b.png (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_link_vdi-blog_e1d20d1b03.png (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_logo_vdi_neu_464baef8d4.png (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_publikationen_aeb935ac38.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_statu…aud2web_ee5c3468e9.jpg (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_vdini-club1_3fe040c42a.png (expiration not specified)
https://www.vdi.de/fileadmin/_processed_/csm_versi…enst_02_7a5885495f.jpg (expiration not specified)
https://www.vdi.de/fileadmin/templates/css/content.css (expiration not specified)
https://www.vdi.de/fileadmin/templates/css/jquery.fancybox-1.3.4.css (expiration not specified)
https://www.vdi.de/fileadmin/templates/css/layouts.css (expiration not specified)
https://www.vdi.de/fileadmin/templates/css/teaserlayouts.css (expiration not specified)
https://www.vdi.de/fileadmin/templates/css/teaserswitchlayouts.css (expiration not specified)
https://www.vdi.de/fileadmin/templates/css/tt_news.css (expiration not specified)
https://www.vdi.de/fileadmin/templates/css/vdi.css (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_footer.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_header_teaser.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_hr_neu.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_mainclaim_neu.png (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_menulevel1a_neu.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_searchfield.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_submitarrow.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_tab_head.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_tab_teaser.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/bg_tab_teasercontent.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/icon_facebook.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/karte_de.png (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/list_type.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/pfeil_header_neu.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/searchbar_bg_neu.gif (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/social/google_20x20.png (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/social/linkedin_20x20.png (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/social/twitter_20x20.png (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/social/xing_20x20.png (expiration not specified)
https://www.vdi.de/fileadmin/templates/img/social/youtube_20x20.png (expiration not specified)
https://www.vdi.de/fileadmin/templates/js/jquery/jquery.app.js (expiration not specified)
https://www.vdi.de/fileadmin/templates/js/jquery/jquery.easing-1.3.pack.js (expiration not specified)
https://www.vdi.de/fileadmin/templates/js/jquery/j…fancybox-1.3.4.pack.js (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/cssstyledimgtext.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/irfaq.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/ml_maps.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/pbsurvey.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/search.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/sitemap.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/tipafriend.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/tt_address.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/tw_rssfeeds.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/tx_vdi_feuser_register.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_cp_event.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_event_search.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_hisabsolv.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_pm_termine.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_regional_event.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_rili.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_rili_training.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/css/vdi_tw_event.css (expiration not specified)
https://www.vdi.de/fileadmin/vdi_de/news_bilder/Pr…tsmodelle__483x241.jpg (expiration not specified)
https://www.vdi.de/typo3conf/ext/powermail/Resourc…ic/JavaScripts/form.js (expiration not specified)
https://www.vdi.de/typo3conf/ext/powermail/Resourc…uery.datetimepicker.js (expiration not specified)
https://www.vdi.de/typo3conf/ext/powermail/Resourc…ic/JavaScripts/tabs.js (expiration not specified)
https://www.vdi.de/typo3conf/ext/rx_shariff/Resour…s/shariff.complete.css (expiration not specified)
https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…db_vdi_rili_search.css (expiration not specified)
https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…mdb_vdi_rili_search.js (expiration not specified)
https://www.vdi.de/typo3conf/ext/wmdb_vdi_teaser/p…x_wmdbvditeaser_pi2.js (expiration not specified)
https://www.vdi.de/typo3temp/javascript_dd82474708.js (expiration not specified)
https://www.vdi.de/typo3temp/stylesheet_f9b205801f.css (expiration not specified)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 44Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 431.7KiB (72% reduction).

Compressing https://www.vdi.de/typo3/contrib/jquery/jquery-1.11.0.min.js could save 61.5KiB (65% reduction).
Compressing https://www.vdi.de/fileadmin/templates/js/jquery/jquery.min.js could save 59.7KiB (64% reduction).
Compressing https://www.vdi.de/ could save 52.5KiB (80% reduction).
Compressing https://www.vdi.de/typo3conf/ext/powermail/Resourc…uery.datetimepicker.js could save 40.4KiB (74% reduction).
Compressing https://www.vdi.de/typo3conf/ext/powermail/Resourc…Scripts/parsley.min.js could save 32KiB (75% reduction).
Compressing https://www.vdi.de/typo3conf/ext/rx_shariff/Resour…s/shariff.complete.css could save 29.6KiB (78% reduction).
Compressing https://www.vdi.de/typo3conf/ext/rx_shariff/Resour…aScript/shariff.min.js could save 25KiB (71% reduction).
Compressing https://www.vdi.de/fileadmin/templates/css/teaserlayouts.css could save 24.2KiB (89% reduction).
Compressing https://www.vdi.de/fileadmin/templates/css/vdi.css could save 16.5KiB (77% reduction).
Compressing https://www.vdi.de/fileadmin/templates/css/layouts.css could save 13.3KiB (87% reduction).
Compressing https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…db_vdi_rili_search.css could save 9.9KiB (82% reduction).
Compressing https://www.vdi.de/fileadmin/templates/js/jquery/j…fancybox-1.3.4.pack.js could save 9.8KiB (64% reduction).
Compressing https://www.vdi.de/fileadmin/templates/css/jquery.fancybox-1.3.4.css could save 7.5KiB (80% reduction).
Compressing https://www.vdi.de/fileadmin/templates/js/jquery/jquery.easing-1.3.pack.js could save 5.9KiB (75% reduction).
Compressing https://www.vdi.de/typo3temp/stylesheet_f9b205801f.css could save 4.9KiB (76% reduction).
Compressing https://www.vdi.de/typo3conf/ext/powermail/Resourc…ic/JavaScripts/tabs.js could save 4.3KiB (70% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/vdi_rili_training.css could save 4.2KiB (76% reduction).
Compressing https://www.vdi.de/typo3conf/ext/powermail/Resourc…ic/JavaScripts/form.js could save 4KiB (66% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/vdi_cp_event.css could save 3.7KiB (70% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/search.css could save 3KiB (76% reduction).
Compressing https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…mdb_vdi_rili_search.js could save 2.5KiB (70% reduction).
Compressing https://www.vdi.de/fileadmin/templates/css/tt_news.css could save 2.1KiB (70% reduction).
Compressing https://www.vdi.de/fileadmin/templates/css/content.css could save 2.1KiB (67% reduction).
Compressing https://www.vdi.de/fileadmin/templates/css/teaserswitchlayouts.css could save 1.8KiB (75% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/cssstyledimgtext.css could save 1.8KiB (69% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/pbsurvey.css could save 1.6KiB (68% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/vdi_tw_event.css could save 1.2KiB (68% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/vdi_regional_event.css could save 1.2KiB (69% reduction).
Compressing https://www.vdi.de/typo3conf/ext/wmdb_vdi_teaser/p…x_wmdbvditeaser_pi2.js could save 1.1KiB (65% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/vdi_event_search.css could save 1KiB (70% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/sitemap.css could save 805B (73% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/tw_rssfeeds.css could save 711B (70% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/vdi_pm_termine.css could save 634B (65% reduction).
Compressing https://www.vdi.de/fileadmin/vdi_de/css/vdi_rili.css could save 612B (62% reduction).
Compressing https://www.vdi.de/typo3temp/javascript_dd82474708.js could save 523B (56% reduction).

priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 28 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.vdi.de/typo3/contrib/jquery/jquery-1.11.0.min.js
https://www.vdi.de/fileadmin/templates/js/jquery/jquery.min.js
https://www.vdi.de/fileadmin/templates/js/jquery/jquery.easing-1.3.pack.js
https://www.vdi.de/fileadmin/templates/js/jquery/j…fancybox-1.3.4.pack.js
https://www.vdi.de/fileadmin/templates/js/jquery/jquery.app.js
https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…mdb_vdi_rili_search.js
https://www.vdi.de/typo3temp/javascript_dd82474708.js
https://www.vdi.de/typo3conf/ext/wmdb_vdi_teaser/p…x_wmdbvditeaser_pi2.js

Optimize CSS Delivery of the following:

https://www.vdi.de/typo3temp/stylesheet_f9b205801f.css
https://www.vdi.de/typo3conf/ext/rx_shariff/Resour…s/shariff.complete.css
https://www.vdi.de/fileadmin/vdi_de/css/pbsurvey.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_rili_training.css
https://www.vdi.de/fileadmin/vdi_de/css/tx_vdi_feuser_register.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_cp_event.css
https://www.vdi.de/fileadmin/vdi_de/css/tipafriend.css
https://www.vdi.de/fileadmin/vdi_de/css/search.css
https://www.vdi.de/fileadmin/vdi_de/css/cssstyledimgtext.css
https://www.vdi.de/fileadmin/vdi_de/css/irfaq.css
https://www.vdi.de/fileadmin/vdi_de/css/ml_maps.css
https://www.vdi.de/fileadmin/vdi_de/css/sitemap.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_regional_event.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_tw_event.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_event_search.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_rili.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_pm_termine.css
https://www.vdi.de/fileadmin/vdi_de/css/vdi_hisabsolv.css
https://www.vdi.de/fileadmin/vdi_de/css/tt_address.css
https://www.vdi.de/fileadmin/vdi_de/css/tw_rssfeeds.css
https://www.vdi.de/fileadmin/templates/css/vdi.css
https://www.vdi.de/fileadmin/templates/css/content.css
https://www.vdi.de/fileadmin/templates/css/layouts.css
https://www.vdi.de/fileadmin/templates/css/teaserlayouts.css
https://www.vdi.de/fileadmin/templates/css/teaserswitchlayouts.css
https://www.vdi.de/fileadmin/templates/css/jquery.fancybox-1.3.4.css
https://www.vdi.de/fileadmin/templates/css/tt_news.css
https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…db_vdi_rili_search.css

priority - 7Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://vdi.de/
http://www.vdi.de/
https://www.vdi.de/

priority - 3Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 28KiB (24% reduction).

Minifying https://www.vdi.de/fileadmin/templates/css/vdi.css could save 5.6KiB (27% reduction).
Minifying https://www.vdi.de/fileadmin/templates/css/teaserlayouts.css could save 4.9KiB (18% reduction).
Minifying https://www.vdi.de/fileadmin/templates/css/layouts.css could save 2.8KiB (19% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/vdi_cp_event.css could save 2.5KiB (48% reduction).
Minifying https://www.vdi.de/fileadmin/templates/css/jquery.fancybox-1.3.4.css could save 1.7KiB (19% reduction).
Minifying https://www.vdi.de/typo3temp/stylesheet_f9b205801f.css could save 1.7KiB (27% reduction).
Minifying https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…db_vdi_rili_search.css could save 1.7KiB (14% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/cssstyledimgtext.css could save 1.3KiB (50% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/vdi_rili_training.css could save 1.1KiB (21% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/sitemap.css could save 1,022B (93% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/vdi_tw_event.css could save 827B (47% reduction).
Minifying https://www.vdi.de/fileadmin/templates/css/teaserswitchlayouts.css could save 786B (32% reduction).
Minifying https://www.vdi.de/fileadmin/templates/css/tt_news.css could save 619B (20% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/pbsurvey.css could save 537B (23% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/search.css could save 534B (14% reduction).
Minifying https://www.vdi.de/fileadmin/vdi_de/css/tw_rssfeeds.css could save 514B (51% reduction).

priority - 2Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 20.8KiB (27% reduction).

Minifying https://www.vdi.de/typo3conf/ext/powermail/Resourc…uery.datetimepicker.js could save 11.3KiB (21% reduction).
Minifying https://www.vdi.de/fileadmin/templates/js/jquery/jquery.easing-1.3.pack.js could save 4.4KiB (55% reduction).
Minifying https://www.vdi.de/typo3conf/ext/powermail/Resourc…ic/JavaScripts/tabs.js could save 2.6KiB (42% reduction).
Minifying https://www.vdi.de/typo3conf/ext/powermail/Resourc…ic/JavaScripts/form.js could save 1.9KiB (33% reduction).
Minifying https://www.vdi.de/typo3conf/ext/wmdb_vdi_rili_sea…mdb_vdi_rili_search.js could save 640B (18% reduction).

priority - 1Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 12.3KiB (19% reduction).

Minifying https://www.vdi.de/ could save 12.3KiB (19% reduction).

priority - 0Reduce server response time

vdi.de Desktop Resource Breakdown

Total Resources115
Number of Hosts11
Static Resources98
JavaScript Resources20
CSS Resources29

vdi.de mobile page speed rank

Last tested: 2017-05-24


Mobile Speed Bad
34/100

vdi.de Mobile Speed Test Quick Summary


priority - 54Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 529.3KiB (74% reduction).

Compressing https://m.vdi.de/fileadmin/vdi_de/news_bilder/Pres…tsmodelle__483x241.jpg could save 85.2KiB (75% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Frauen_…urberuf_00ab5855d7.jpg could save 36.3KiB (81% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_DRIVE-E_2017_033d076603.jpg could save 36.1KiB (78% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Bild_Ad…700x700_1e8ecae2c0.jpg could save 32KiB (87% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Richtli…0x70042_42a1b75ab2.jpg could save 31.5KiB (80% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Wertana…_im_VDI_691fdbeeae.jpg could save 30KiB (80% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_SuJ-Kon…quadrat_ac44b51d26.jpg could save 27.7KiB (78% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Mitglie…quadrat_3db7c92314.jpg could save 26.3KiB (72% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_MedConf…o-quadr_521a6ffcae.jpg could save 25.4KiB (70% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_6490_DI…0x700px_fbe37f0b25.jpg could save 22.6KiB (89% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm__Q1A676…e-klein_97549e6230.jpg could save 22.6KiB (80% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_VDI_620…300x300_97a8466dd0.jpg could save 20.5KiB (71% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_5168_Teeglaeser_d17562175d.jpg could save 19.8KiB (93% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_leitbil…483x241_cd00528ff2.jpg could save 19.4KiB (77% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Jahresb…700x700_2ff8aede1b.jpg could save 18.4KiB (88% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Wertana…700x700_a315840a05.jpg could save 15.2KiB (67% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_statue-…aud2web_ee5c3468e9.jpg could save 10.7KiB (49% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_VDI-Ena…M.Kumar_6234fa29d2.jpg could save 9.5KiB (51% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_KeyVisu…_Kasten_7dd87ea0f4.jpg could save 7KiB (76% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_blog_ve…rtseite_fd839b3192.jpg could save 5.8KiB (53% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_publikationen_aeb935ac38.jpg could save 5.4KiB (56% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Elphi__087116431b.jpg could save 4.9KiB (51% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_Bannert…2011_lo_7face195be.jpg could save 4.5KiB (50% reduction).
Compressing https://m.vdi.de/fileadmin/_processed_/csm_versich…enst_02_7a5885495f.jpg could save 4KiB (47% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/img/bg_footer_left_full_v2.png could save 2.6KiB (57% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/img/bg_footer_right_full_v2.png could save 2.6KiB (56% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/themes…ges/icons-36-white.png could save 2.4KiB (26% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/img/gfx_trenner.png could save 860B (90% reduction).

priority - 43Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://m.vdi.de/fileadmin/_processed_/csm_5168_Teeglaeser_d17562175d.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_6490_DI…0x700px_fbe37f0b25.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Bannert…2011_lo_7face195be.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Bild_Ad…700x700_1e8ecae2c0.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_DRIVE-E_2017_033d076603.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Elphi__087116431b.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Foto_Ho…300_300_f4f06ab367.png (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Frauen_…urberuf_00ab5855d7.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Jahresb…700x700_2ff8aede1b.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_KeyVisu…_Kasten_7dd87ea0f4.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_MedConf…o-quadr_521a6ffcae.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Mitglie…quadrat_3db7c92314.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Richtli…0x70042_42a1b75ab2.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_SuJ-Kon…quadrat_ac44b51d26.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_VDI-Ena…M.Kumar_6234fa29d2.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_VDI_620…300x300_97a8466dd0.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Wertana…700x700_a315840a05.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_Wertana…_im_VDI_691fdbeeae.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm__Q1A676…e-klein_97549e6230.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_anfahrt…haus200_778db5317a.png (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_blog_ve…rtseite_fd839b3192.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_leitbil…483x241_cd00528ff2.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_publikationen_aeb935ac38.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_statue-…aud2web_ee5c3468e9.jpg (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_vdini-club1_3fe040c42a.png (expiration not specified)
https://m.vdi.de/fileadmin/_processed_/csm_versich…enst_02_7a5885495f.jpg (expiration not specified)
https://m.vdi.de/fileadmin/templates/img/icon_facebook.gif (expiration not specified)
https://m.vdi.de/fileadmin/templates/img/icon_twitter.gif (expiration not specified)
https://m.vdi.de/fileadmin/templates/img/icon_xing.gif (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/css/style.css (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/css/teaser_mobile.css (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/css/teaserswitchlayouts.css (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/css/whatapp-button.css (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/bg_footer_left_full_v2.png (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/bg_footer_right_full_v2.png (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/btn_mein-vdi.png (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/btn_mitglied-werden.png (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/gfx_trenner.png (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/list_type.gif (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/logo.png (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/img/whatsapp-button.svg (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/js/app.js (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/js/jquery.1.7.1.js (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/js/vdi.jquery.js (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/themes/images/ajax-loader.gif (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/themes…ges/icons-36-white.png (expiration not specified)
https://m.vdi.de/fileadmin/templates_mobile/themes/vdi_v0.3.css (expiration not specified)
https://m.vdi.de/fileadmin/vdi_de/news_bilder/Pres…tsmodelle__483x241.jpg (expiration not specified)
https://m.vdi.de/typo3/js/jsfunc.updateform.js (expiration not specified)
https://m.vdi.de/typo3conf/ext/wmdb_vdi_accordeon/…mdbvdiaccordeon_pi1.js (expiration not specified)
https://m.vdi.de/typo3conf/ext/wmdb_vdi_rili_searc…rili_search_mobile.css (expiration not specified)
https://m.vdi.de/typo3conf/ext/wmdb_vdi_rili_searc…_rili_search_mobile.js (expiration not specified)
https://m.vdi.de/typo3conf/ext/wmdb_vdi_teaser/pi2…x_wmdbvditeaser_pi2.js (expiration not specified)
https://m.vdi.de/typo3temp/javascript_dd82474708.js (expiration not specified)
https://m.vdi.de/typo3temp/stylesheet_f9b205801f.css (expiration not specified)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://m.vdi.de/typo3temp/javascript_dd82474708.js
https://m.vdi.de/fileadmin/templates_mobile/js/jquery.1.7.1.js
https://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.js
https://m.vdi.de/typo3conf/ext/wmdb_vdi_accordeon/…mdbvdiaccordeon_pi1.js
https://m.vdi.de/typo3/js/jsfunc.updateform.js
https://m.vdi.de/fileadmin/templates_mobile/js/vdi.jquery.js
https://m.vdi.de/fileadmin/templates_mobile/js/app.js
https://m.vdi.de/typo3conf/ext/wmdb_vdi_rili_searc…_rili_search_mobile.js
https://m.vdi.de/typo3conf/ext/wmdb_vdi_teaser/pi2…x_wmdbvditeaser_pi2.js

Optimize CSS Delivery of the following:

https://m.vdi.de/typo3temp/stylesheet_f9b205801f.css
https://m.vdi.de/fileadmin/templates_mobile/css/teaserswitchlayouts.css
https://m.vdi.de/fileadmin/templates_mobile/css/whatapp-button.css
https://code.jquery.com/mobile/1.1.0/jquery.mobile-1.1.0.min.css
https://m.vdi.de/fileadmin/templates_mobile/themes/vdi_v0.3.css
https://m.vdi.de/fileadmin/templates_mobile/css/style.css
https://m.vdi.de/fileadmin/templates_mobile/css/teaser_mobile.css
https://m.vdi.de/typo3conf/ext/wmdb_vdi_rili_searc…rili_search_mobile.css

priority - 34Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://vdi.de/
http://www.vdi.de/
https://m.vdi.de/

priority - 18Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 180.6KiB (73% reduction).

Compressing https://m.vdi.de/fileadmin/templates_mobile/js/jquery.1.7.1.js could save 59.7KiB (64% reduction).
Compressing https://m.vdi.de/ could save 42.8KiB (78% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/themes/vdi_v0.3.css could save 32.2KiB (88% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/css/style.css could save 11.7KiB (74% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/js/vdi.jquery.js could save 7.6KiB (75% reduction).
Compressing https://m.vdi.de/typo3temp/stylesheet_f9b205801f.css could save 4.9KiB (76% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/css/teaser_mobile.css could save 4.7KiB (80% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/js/app.js could save 4KiB (71% reduction).
Compressing https://m.vdi.de/typo3conf/ext/wmdb_vdi_rili_searc…rili_search_mobile.css could save 3.5KiB (77% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/css/teaserswitchlayouts.css could save 2.9KiB (76% reduction).
Compressing https://m.vdi.de/typo3conf/ext/wmdb_vdi_rili_searc…_rili_search_mobile.js could save 1.9KiB (71% reduction).
Compressing https://m.vdi.de/typo3conf/ext/wmdb_vdi_teaser/pi2…x_wmdbvditeaser_pi2.js could save 1.1KiB (65% reduction).
Compressing https://m.vdi.de/typo3conf/ext/wmdb_vdi_accordeon/…mdbvdiaccordeon_pi1.js could save 833B (59% reduction).
Compressing https://m.vdi.de/typo3/js/jsfunc.updateform.js could save 824B (56% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/img/whatsapp-button.svg could save 753B (46% reduction).
Compressing https://m.vdi.de/fileadmin/templates_mobile/css/whatapp-button.css could save 585B (52% reduction).
Compressing https://m.vdi.de/typo3temp/javascript_dd82474708.js could save 523B (56% reduction).

priority - 16Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 30% of the final above-the-fold content could be rendered with the full HTML response.

priority - 3Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 25.8KiB (36% reduction).

Minifying https://m.vdi.de/fileadmin/templates_mobile/themes/vdi_v0.3.css could save 17.9KiB (50% reduction).
Minifying https://m.vdi.de/fileadmin/templates_mobile/css/style.css could save 3.1KiB (20% reduction).
Minifying https://m.vdi.de/typo3temp/stylesheet_f9b205801f.css could save 1.7KiB (27% reduction).
Minifying https://m.vdi.de/fileadmin/templates_mobile/css/teaser_mobile.css could save 1.4KiB (25% reduction).
Minifying https://m.vdi.de/fileadmin/templates_mobile/css/teaserswitchlayouts.css could save 1KiB (27% reduction).
Minifying https://m.vdi.de/typo3conf/ext/wmdb_vdi_rili_searc…rili_search_mobile.css could save 641B (14% reduction).

priority - 2Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 16.1KiB (30% reduction).

Minifying https://m.vdi.de/ could save 16.1KiB (30% reduction).

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 3.9KiB (24% reduction).

Minifying https://m.vdi.de/fileadmin/templates_mobile/js/vdi.jquery.js could save 2KiB (20% reduction).
Minifying https://m.vdi.de/fileadmin/templates_mobile/js/app.js could save 1.2KiB (22% reduction).
Minifying https://m.vdi.de/typo3/js/jsfunc.updateform.js could save 767B (52% reduction).

priority - 0Reduce server response time

vdi.de Mobile Resource Breakdown

Total Resources78
Number of Hosts12
Static Resources64
JavaScript Resources16
CSS Resources9

vdi.de mobile page usability

Last tested: 2017-05-24


Mobile Usability Good
99/100

vdi.de Mobile Usability Test Quick Summary


priority - 0Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="/artikel/tipps…lagen-im-auto/" class="ui-link">Tipps zur Wart…nlagen im Auto</a> is close to 1 other tap targets.

The tap target <a href="/technik/" class="ui-btn ui-btn-…er-all ui-mini">Technik</a> and 8 others are close to other tap targets.
The tap target <a href="http://www.xin…m.vdi.de%2F&amp;t=" class="ui-link"></a> and 2 others are close to other tap targets.
The tap target <a href="whatsapp://sen…%2Fm.vdi.de%2F" class="wa_btn wa_btn_s ui-link"></a> is close to 1 other tap targets.
The tap target <div class="prev"> is close to 1 other tap targets.

vdi.de HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 3 Column: 1 - 62
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

Attribute “x-ms-format-detection” not allowed on element “html” at this point.

Line: 4 Column: 63 - 96
"...onal.dtd"> <html xml:lang="de" lang="de" xmlns="http://www.w3.org/1999/xhtml" x-ms-format-detection="none"> <head..."

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

Line: 813 Column: 4 - 110
"...n] --> <iframe width="235" height="191" src="//www.youtube.com/embed/PFSL0gpHmi8" frameborder="0" allowfullscreen></ifra..." Line: 947 Column: 4 - 156
"...n] --> <iframe width="235" height="191" src="https://www.youtube.com/embed/videoseries?list=PLF4k35zSn7iRrz0BSBG6pl3FIduy6zUFt" frameborder="0" allowfullscreen></ifra..."

No space between attributes.

Line: 1131 Column: - 45
"...class="shariff"data-services="..."

Warnings

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 103 Column: 478 - 573
"...vereine/"><img src="/fileadmin/templates/img/karte_de.png" width="78" height="101" alt="" border="0" /></a></..." Line: 104 Column: 44 - 159
"... href="/"><img src="/fileadmin/_processed_/7/5/csm_logo_vdi_neu_fc95d89f31.png" width="60" height="60" alt="" border="0" /></a></..." Line: 105 Column: 102 - 221
"...i/login/"><img src="/fileadmin/_processed_/4/e/csm_link_meinvdi_neu_22b4383873.png" width="89" height="19" alt="" border="0" /></a></..." Line: 105 Column: 292 - 419
"...orteile/"><img src="/fileadmin/_processed_/9/5/csm_link_mitgliedwerden_neu_7f26420a03.png" width="129" height="19" alt="" border="0" /></a></..." Line: 105 Column: 498 - 614
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vdi.de Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


vdi.de TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.