uni-duesseldorf.de Website Information

Daily Unique Visits: 132,897

Daily Page Views: 797,382

Income Per Day: $1,595

Estimated Value: $1,148,400

This website is located in Germany and is using following IP address 134.99.128.238. See the complete list of popular websites hosted in Germany.

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

Website uni-duesseldorf.de is using the following name servers:

ns1.arcor-ip.de
ns2.arcor-ip.de
ns3.arcor-ip.de
sirene.rz.uni-duesseldorf.de
selene.rz.uni-duesseldorf.de

and is probably hosted by Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.. See the full list of other websites hosted by Verein zur Foerderung eines Deutschen Forschungsnetzes e.V..

The highest website uni-duesseldorf.de position in Alexa rank database was 10594 and the lowest rank position was 10994. Current position of uni-duesseldorf.de in Alexa rank database is 10792.

Desktop speed score of uni-duesseldorf.de (59/100) is better than the results of 34.36% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of uni-duesseldorf.de (89/100) is better than the results of 31.01% of other sites and means that the page is mobile-friendly.

Mobile speed score of uni-duesseldorf.de (50/100) is better than the results of 33.92% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

uni-duesseldorf.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.

uni-duesseldorf.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: uni-duesseldorf.de
Status: connect

uni-duesseldorf.de server information

Servers Location

uni-duesseldorf.de desktop page speed rank

Last tested: 2018-10-08

Desktop Speed Bad

59/100

uni-duesseldorf.de Desktop Speed Test Quick Summary

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priority - 20Leverage browser caching

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priority - 13Optimize images

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

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priority - 2Minify CSS

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priority - 1Minify JavaScript

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uni-duesseldorf.de Desktop Resource Breakdown

Total Resources	64
Number of Hosts	3
Static Resources	39
JavaScript Resources	15
CSS Resources	10

uni-duesseldorf.de mobile page speed rank

Last tested: 2018-10-08

Mobile Speed Bad

50/100

uni-duesseldorf.de Mobile Speed Test Quick Summary

priority - 44Enable compression

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priority - 35Leverage browser caching

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https://www.uni-duesseldorf.de/home/fileadmin//red…_WiSe18-19_2018-07.png (expiration not specified)
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https://www.uni-duesseldorf.de/home/fileadmin//red…o-Rundgang_2015-12.png (expiration not specified)
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priority - 13Optimize images

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

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

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priority - 5Reduce server response time

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uni-duesseldorf.de Mobile Resource Breakdown

Total Resources	75
Number of Hosts	5
Static Resources	47
JavaScript Resources	17
CSS Resources	15

uni-duesseldorf.de mobile page usability

Last tested: 2018-10-08

Mobile Usability Good

89/100

uni-duesseldorf.de Mobile Usability Test Quick Summary

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

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 <div id="usernav_toggle" class="burger_wrap navbar-toggle"></div> is close to 1 other tap targets.

The tap target <div id="menu_users" class="artclose"></div> is close to 1 other tap targets.

The tap target <div id="searchform_toggle" class="burger_wrap navbar-toggle"></div> is close to 1 other tap targets.

The tap target <div id="leftnav_toggle" class="burger_wrap navbar-toggle"></div> is close to 2 other tap targets.

The tap target <div id="leftnav_toggle" class="burger_wrap navbar-toggle"></div> and 1 others are close to other tap targets.

uni-duesseldorf.de HTML validation

Errors

Obsolete doctype. Expected “<!DOCTYPE html>”.

Line: 3 Column: 1 - 56
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html..."

Bad value “cache-control” for attribute “http-equiv” on element “meta”.

Line: 51 Column: 1 - 54
"...script> <meta http-equiv="cache-control" content="no-cache" /><meta ..."

Bad value “pragma” for attribute “http-equiv” on element “meta”.

Line: 51 Column: 55 - 101
"...-cache" /><meta http-equiv="pragma" content="no-cache" /><meta ..."

Bad value “280px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 63 Column: 33 - 114
"...ite.html"><img width="280px" height="150px" src="/home/fileadmin/images/svg/hhu_logo.svg" /></a> <..."

Bad value “150px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Line: 63 Column: 33 - 114
"...ite.html"><img width="280px" height="150px" src="/home/fileadmin/images/svg/hhu_logo.svg" /></a> <..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 63 Column: 33 - 114
"...ite.html"><img width="280px" height="150px" src="/home/fileadmin/images/svg/hhu_logo.svg" /></a> <..." Line: 69 Column: 13 - 93
"... <img height="48px" width="35px" src="/home/fileadmin/images/svg/user_icon.svg" /> ..." Line: 74 Column: 13 - 69
"... <img src="/home/fileadmin/images/svg/hhu_logo_min.svg" /> ..." Line: 78 Column: 9 - 91
"...> <img height="48px" width="25px" src="/home/fileadmin/images/svg/search_icon.svg" /> <..." Line: 87 Column: 13 - 91
"... <img width="46px" height="20px" src="/home/fileadmin/images/svg/en_icon.svg" /> ..." Line: 92 Column: 140 - 222
"...-default"><img width="16px" height="14px" src="/home/fileadmin/images/svg/portal_icon.svg" /> &nbsp..." Line: 92 Column: 431 - 513
"...-default"><img width="16px" height="14px" src="/home/fileadmin/images/svg/portal_icon.svg" /> &nbsp..." Line: 92 Column: 730 - 812
"...-default"><img width="16px" height="14px" src="/home/fileadmin/images/svg/portal_icon.svg" /> &nbsp..." Line: 120 Column: 13 - 66
"... <img src="/home/fileadmin/images/svg/navi_icon.svg" /> ..." Line: 126 Column: 148 - 262
"...acity:1;"><img src="/home/fileadmin//redaktion/HHU_Webbanner/Banner_1a_Buergeruniversitaetfin.jpg" width="170" height="250"/></a><a..." Line: 126 Column: 465 - 582
"...acity:0;"><img src="/home/fileadmin//redaktion/HHU_Webbanner/Webbanner_HHU_Pano-Rundgang_2015-12.png" width="170" height="250"/></a><a..." Line: 126 Column: 824 - 941
"...acity:0;"><img src="/home/fileadmin//user_upload/Erstsemesterbegru__ssung_Webbanner_2018_170x250.jpg" width="170" height="250"/></a><a..." Line: 126 Column: 1057 - 1164
"...acity:0;"><img src="/home/fileadmin//redaktion/HHU_Webbanner/Banner_Studstart_2018edns.png" width="170" height="250"/></a><a..." Line: 126 Column: 1438 - 1558
"...acity:0;"><img src="/home/fileadmin//redaktion/HHU_Webbanner/Banner_Einschreibung_WiSe18-19_2018-07.png" width="170" height="250"/></a></..."

Bad value “48px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Line: 69 Column: 13 - 93
"... <img height="48px" width="35px" src="/home/fileadmin/images/svg/user_icon.svg" /> ..." Line: 78 Column: 9 - 91
"...> <img height="48px" width="25px" src="/home/fileadmin/images/svg/search_icon.svg" /> <..."

Bad value “35px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 69 Column: 13 - 93
"... <img height="48px" width="35px" src="/home/fileadmin/images/svg/user_icon.svg" /> ..."

Bad value “25px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 78 Column: 9 - 91
"...> <img height="48px" width="25px" src="/home/fileadmin/images/svg/search_icon.svg" /> <..."

Bad value “46px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 87 Column: 13 - 91
"... <img width="46px" height="20px" src="/home/fileadmin/images/svg/en_icon.svg" /> ..."

Bad value “20px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Line: 87 Column: 13 - 91
"... <img width="46px" height="20px" src="/home/fileadmin/images/svg/en_icon.svg" /> ..."

Bad value “16px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 92 Column: 140 - 222
"...-default"><img width="16px" height="14px" src="/home/fileadmin/images/svg/portal_icon.svg" /> &nbsp..." Line: 92 Column: 431 - 513
"...-default"><img width="16px" height="14px" src="/home/fileadmin/images/svg/portal_icon.svg" /> &nbsp..." Line: 92 Column: 730 - 812
"...-default"><img width="16px" height="14px" src="/home/fileadmin/images/svg/portal_icon.svg" /> &nbsp..."

Bad value “14px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

The element “a” must not appear as a descendant of the “button” element.

Line: 92 Column: 230 - 355
"... />  <a href="https://www.uni-duesseldorf.de/home/nc/login-links/portale.html" id="mmenu_15035" class="topmenuM_a btn btn-default">Portal..." Line: 92 Column: 521 - 650
"... />  <a href="https://www.uni-duesseldorf.de/home/nc/login-links/ulb-katalog.html" id="mmenu_15034" class="topmenuM_a btn btn-default">ULB-Ka..." Line: 92 Column: 820 - 946
"... />  <a href="https://www.uni-duesseldorf.de/home/nc/login-links/intranet.html" id="mmenu_15033" class="topmenuM_a btn btn-default">Intran..."

Duplicate ID “googlesearch”.

Line: 230 Column: 3 - 124
"...earch"> <form id="googlesearch" method="get" accept-charset="UTF-8" action="//www.uni-duesseldorf.de/home/startseite/yacy-suche/"> <..."

Element “input” is missing required attribute “alt”.

Line: 232 Column: 7 - 91
"...iv> <input src="https://www.uni-duesseldorf.de/home/fileadmin/suchen-G.gif" type="image"> ..."

Duplicate ID “newsticker_list”.

Line: 383 Column: 2 - 26
"...ative;"> <ul id="newsticker_list"> ..."

Duplicate ID “news_1”.

Line: 386 Column: 5 - 34
"... <li class="event" id="news_1"> ..."

Duplicate ID “news_2”.

Line: 393 Column: 5 - 34
"... <li class="event" id="news_2"> ..."

Duplicate ID “news_3”.

Line: 399 Column: 5 - 34
"... <li class="event" id="news_3"> ..."

Duplicate ID “news_4”.

Line: 405 Column: 5 - 34
"... <li class="event" id="news_4"> ..."

Duplicate ID “news_5”.

Line: 411 Column: 5 - 34
"... <li class="event" id="news_5"> ..."

Duplicate ID “news_6”.

Line: 417 Column: 5 - 34
"... <li class="event" id="news_6"> ..."

Duplicate ID “news_7”.

Line: 423 Column: 5 - 34
"... <li class="event" id="news_7"> ..."

Duplicate ID “news_8”.

Line: 429 Column: 5 - 34
"... <li class="event" id="news_8"> ..."

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 437 Column: 2510 - 2532
"...default" ><style type="text/css"> #righ..."

Warnings

The “navigation” role is unnecessary for element “nav”.

Line: 65 Column: 1 - 53
"...> </span> <nav class="navbar navbar-default" role="navigation"> <di..."

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

Line: 125 Column: 49 - 78
"...eft_flex"><a name="c17940" id="c17940x"></a><d..." Line: 128 Column: 8 - 39
"...v> </div><a name="c357020" id="c357020x"></a><d..." Line: 128 Column: 491 - 522
"...div></div><a name="c328058" id="c328058x"></a><d..." Line: 136 Column: 91 - 114
"...H_begin--><a name="c41" id="c41x"></a><d..." Line: 138 Column: 20 - 45
"..."iz_left"><a name="c122" id="c122x"></a><d..." Line: 152 Column: 7 - 38
"...iv> </div><a name="c136218" id="c136218x"></a><d..." Line: 167 Column: 21 - 46
"...iz_right"><a name="c665" id="c665x"></a><d..." Line: 217 Column: 7 - 36
"...iv> </div><a name="c14155" id="c14155x"></a><d..." Line: 240 Column: 82 - 109
"...H_begin--><a name="c1197" id="c1197x"></a><d..." Line: 313 Column: 7 - 36
"...iv> </div><a name="c78053" id="c78053x"></a><d..." Line: 377 Column: 13 - 44
"...div></div><a name="c328060" id="c328060x"></a><d..." Line: 437 Column: 7 - 38
"...iv> </div><a name="c328278" id="c328278x"></a><d..." Line: 437 Column: 514 - 545
"...div></div><a name="c157646" id="c157646x"></a><d..." Line: 437 Column: 997 - 1028
"...div></div><a name="c328252" id="c328252x"></a><d..." Line: 437 Column: 1466 - 1497
"...div></div><a name="c328279" id="c328279x"></a><d..." Line: 437 Column: 1951 - 1982
"...div></div><a name="c369490" id="c369490x"></a><d..." Line: 437 Column: 2435 - 2466
"...div></div><a name="c315054" id="c315054x"></a><d..."

The first occurrence of ID “googlesearch” was here.

Line: 94 Column: 9 - 126
"...> <form class="mobisearch" id="googlesearch" action="//www.uni-duesseldorf.de/home/startseite/yacy-suche/" method="get"> ..."

The first occurrence of ID “newsticker_list” was here.

Line: 246 Column: 2 - 26
"...ative;"> <ul id="newsticker_list"> ..."

The first occurrence of ID “news_1” was here.

Line: 249 Column: 5 - 34
"... <li class="event" id="news_1"> ..."

The first occurrence of ID “news_2” was here.

Line: 256 Column: 5 - 34
"... <li class="event" id="news_2"> ..."

The first occurrence of ID “news_3” was here.

Line: 262 Column: 5 - 34
"... <li class="event" id="news_3"> ..."

The first occurrence of ID “news_4” was here.

Line: 268 Column: 5 - 34
"... <li class="event" id="news_4"> ..."

The first occurrence of ID “news_5” was here.

Line: 274 Column: 5 - 34
"... <li class="event" id="news_5"> ..."

The first occurrence of ID “news_6” was here.

Line: 280 Column: 5 - 34
"... <li class="event" id="news_6"> ..."

The first occurrence of ID “news_7” was here.

Line: 286 Column: 5 - 34
"... <li class="event" id="news_7"> ..."

The first occurrence of ID “news_8” was here.

Line: 292 Column: 5 - 34
"... <li class="event" id="news_8"> ..."

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uni-duesseldorf.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.

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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.

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priority - 35Leverage browser caching

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Obsolete doctype. Expected “<!DOCTYPE html>”.

Bad value “cache-control” for attribute “http-equiv” on element “meta”.

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Bad value “280px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “150px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Bad value “48px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Bad value “35px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “25px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “46px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “20px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Bad value “16px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “14px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

The element “a” must not appear as a descendant of the “button” element.

Duplicate ID “googlesearch”.

Element “input” is missing required attribute “alt”.

Duplicate ID “newsticker_list”.

Duplicate ID “news_1”.

Duplicate ID “news_2”.