AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

UNI-HEIDELBERG.DE Heidelberg University

uni-heidelberg.de Website Information

Daily Unique Visits: 850,372

Daily Page Views: 6,802,976

Income Per Day: $6,803

Estimated Value: $7,347,240

This website is located in Germany and is using following IP address 129.206.13.93. See the complete list of popular websites hosted in Germany.

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

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

  • dns3.belwue.de
  • dns1.belwue.de
  • dns.uni-heidelberg.de
  • dns2.uni-heidelberg.de

and is probably hosted by Universitaet Stuttgart. See the full list of other websites hosted by Universitaet Stuttgart.

The highest website uni-heidelberg.de position in Alexa rank database was 1781 and the lowest rank position was 2088. Current position of uni-heidelberg.de in Alexa rank database is 1792.

Desktop speed score of uni-heidelberg.de (81/100) is better than the results of 71.91% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of uni-heidelberg.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 uni-heidelberg.de (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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uni-heidelberg.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-heidelberg.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-heidelberg.de
Status: connect

uni-heidelberg.de server information

Servers Location

uni-heidelberg.de desktop page speed rank

Last tested: 2019-12-08

Desktop Speed Medium
81/100

uni-heidelberg.de Desktop Speed Test Quick Summary


priority - 17Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

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

http://uni-heidelberg.de/
https://uni-heidelberg.de/
http://www.uni-heidelberg.de/
https://www.uni-heidelberg.de/
https://www.uni-heidelberg.de/en

priority - 2Eliminate 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.

Optimize CSS Delivery of the following:

https://www.uni-heidelberg.de/main.979f1aae1f7414dc12b2fe8447f2862c.css

priority - 2Leverage 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://webanalyse.urz.uni-heidelberg.de/piwik/matomo.js (expiration not specified)
https://backend-484.uni-heidelberg.de/en/graphql?0…riables%22%3A%7B%7D%7D (60 seconds)
https://backend-484.uni-heidelberg.de/en/graphql?0…22%3A%22en-US%22%7D%7D (60 seconds)
https://backend-484.uni-heidelberg.de/en/graphql?0…riables%22%3A%7B%7D%7D (60 seconds)

priority - 1Minify 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 5.8KiB (19% reduction).

Minifying https://www.uni-heidelberg.de/main.979f1aae1f7414dc12b2fe8447f2862c.css could save 5.8KiB (19% reduction) after compression.

priority - 0Optimize images

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Optimize the following images to reduce their size by 3.1KiB (53% reduction).

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uni-heidelberg.de Desktop Resource Breakdown

Total Resources29
Number of Hosts5
Static Resources19
JavaScript Resources7
CSS Resources1

uni-heidelberg.de mobile page speed rank

Last tested: 2019-12-07

Mobile Speed Bad
59/100

uni-heidelberg.de Mobile Speed Test Quick Summary


priority - 61Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

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

http://uni-heidelberg.de/
https://uni-heidelberg.de/
http://www.uni-heidelberg.de/
https://www.uni-heidelberg.de/
https://www.uni-heidelberg.de/en

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.

Optimize CSS Delivery of the following:

https://www.uni-heidelberg.de/main.979f1aae1f7414dc12b2fe8447f2862c.css

priority - 3Leverage 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://webanalyse.urz.uni-heidelberg.de/piwik/matomo.js (expiration not specified)
https://backend-484.uni-heidelberg.de/en/graphql?0…riables%22%3A%7B%7D%7D (60 seconds)
https://backend-484.uni-heidelberg.de/en/graphql?0…22%3A%22en-US%22%7D%7D (60 seconds)
https://backend-484.uni-heidelberg.de/en/graphql?0…riables%22%3A%7B%7D%7D (60 seconds)

priority - 1Minify 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 5.8KiB (19% reduction).

Minifying https://www.uni-heidelberg.de/main.979f1aae1f7414dc12b2fe8447f2862c.css could save 5.8KiB (19% reduction) after compression.

priority - 0Optimize images

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

Optimize the following images to reduce their size by 3.1KiB (50% reduction).

Compressing https://backend-484.uni-heidelberg.de/sites/defaul…80ec199a&itok=07ixLjSv could save 398B (55% reduction).
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uni-heidelberg.de Mobile Resource Breakdown

Total Resources29
Number of Hosts5
Static Resources19
JavaScript Resources7
CSS Resources1

uni-heidelberg.de mobile page usability

Last tested: 2019-12-07

Mobile Usability Good
99/100

uni-heidelberg.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="/en?overlay=search" class=""></a> is close to 1 other tap targets.

uni-heidelberg.de HTML validation

Errors

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Line: 12 Column: 1 - 49
"...ntent=""> <meta http-equiv="Content-Language" content="de"> <meta..."

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

Line: 23 Column: 1 - 45
"..."3 days"> <meta http-equiv="imagetoolbar" content="no"> <meta..."

Attribute “size” not allowed on element “link” at this point.

Line: 31 Column: 1 - 119
"...cons --> <link rel="apple-touch-icon" type="image/png" size="129x129" href="https://www.uni-heidelberg.de/apple-touch-icon.png"> <lin..." Line: 33 Column: 1 - 151
"...on.png"> <link rel="apple-touch-icon-precomposed" type="image/png" size="129x129" href="https://www.uni-heidelberg.de/apple-touch-icon-129x129-precomposed.png"> <lin..." Line: 35 Column: 1 - 127
"...ed.png"> <link rel="apple-touch-icon" type="image/png" size="129x129" href="https://www.uni-heidelberg.de/apple-touch-icon-129x129.png"> <lin..." Line: 37 Column: 1 - 151
"...29.png"> <link rel="apple-touch-icon-precomposed" type="image/png" size="114x114" href="https://www.uni-heidelberg.de/apple-touch-icon-114x114-precomposed.png"> <lin..." Line: 39 Column: 1 - 127
"...ed.png"> <link rel="apple-touch-icon" type="image/png" size="114x114" href="https://www.uni-heidelberg.de/apple-touch-icon-114x114.png"> <lin..." Line: 41 Column: 1 - 147
"...14.png"> <link rel="apple-touch-icon-precomposed" type="image/png" size="72x72" href="https://www.uni-heidelberg.de/apple-touch-icon-72x72-precomposed.png"> <lin..." Line: 43 Column: 1 - 123
"...ed.png"> <link rel="apple-touch-icon" size="72x72" type="image/png" href="https://www.uni-heidelberg.de/apple-touch-icon-72x72.png"> <lin..." Line: 45 Column: 1 - 147
"...72.png"> <link rel="apple-touch-icon-precomposed" type="image/png" size="57x57" href="https://www.uni-heidelberg.de/apple-touch-icon-57x57-precomposed.png"> <lin..." Line: 47 Column: 1 - 123
"...ed.png"> <link rel="apple-touch-icon" type="image/png" size="57x57" href="https://www.uni-heidelberg.de/apple-touch-icon-57x57.png"> <!--..."

Element “h4” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 116 Column: 4 - 31
"... <ul> <h4 style="margin-top: 5px">Schnel..."

Bad value “100px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 216 Column: 14 - 47
"... <img src="/md/zentral/alte_universitaet_b100x100.jpg" width="100px" alt="Alte Uni" class="aktuellesBildHP" border="0"> ..." Line: 258 Column: 14 - 47
"... <img src="/md/zentral/hells_bells_formationen_el_zapote_hoehle_100x100.jpg" width="100px" alt="Die Hells Bells-Formationen in der El Zapote-Höhle bei Puerto Morelos auf der Yukatan-Halbinsel." class="aktuellesBildHP" border="0"> ..." Line: 300 Column: 14 - 47
"... <img src="/md/zentral/universitaet/studiumgenerale/fittosize__100_100_99baebe78d1d435904af2979e211c0aa_sg_aggression-c-istockphoto-tverkhovinets.png" width="100px" alt="Studium Generale" class="aktuellesBildHP" border="0"> ..."

The “align” attribute on the “img” element is obsolete. Use CSS instead.

Line: 358 Column: 91 - 231
"... Spenden"><img src="/md/zentral/images/banner_zukunftstiften_200x107.gif" align="left" width="200" height="107" alt="Zukunft Stiften - Online Spenden"></a> ..." Line: 401 Column: 7 - 133
"...a"> <p><img src="/md/zentral/images/icon_facebook.jpg" align="left" style="margin-left: 10px; margin-right: 8px;" alt="Icon Facebook"><a hre..." Line: 402 Column: 35 - 158
"...om: 8px;"><img src="/md/zentral/images/icon_twitter.png" align="left" style="margin-left: 10px;margin-right: 8px;" alt="Icon Twitter"><a hre..."

Attribute “value” not allowed on element “input” at this point.

Line: 382 Column: 3 - 103
"...:3px;"> <input name="sa" value=" " src="/md/zentral/images/icon_search_11x20.gif" height="20px" type="image"> </div..."

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

Line: 382 Column: 3 - 103
"...:3px;"> <input name="sa" value=" " src="/md/zentral/images/icon_search_11x20.gif" height="20px" type="image"> </div..."

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

Line: 382 Column: 3 - 103
"...:3px;"> <input name="sa" value=" " src="/md/zentral/images/icon_search_11x20.gif" height="20px" type="image"> </div..."

Warnings

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

Line: 66 Column: 18 - 38
"...="topBar"><a name="up" id="up"></a></..."

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

Line: 216 Column: 14 - 47
"... <img src="/md/zentral/alte_universitaet_b100x100.jpg" width="100px" alt="Alte Uni" class="aktuellesBildHP" border="0"> ..." Line: 258 Column: 14 - 47
"... <img src="/md/zentral/hells_bells_formationen_el_zapote_hoehle_100x100.jpg" width="100px" alt="Die Hells Bells-Formationen in der El Zapote-Höhle bei Puerto Morelos auf der Yukatan-Halbinsel." class="aktuellesBildHP" border="0"> ..." Line: 300 Column: 14 - 47
"... <img src="/md/zentral/universitaet/studiumgenerale/fittosize__100_100_99baebe78d1d435904af2979e211c0aa_sg_aggression-c-istockphoto-tverkhovinets.png" width="100px" alt="Studium Generale" class="aktuellesBildHP" border="0"> ..."

This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.

Line: 2 Column: 16 - 6
"...TYPE HTML> <html><head>..."

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uni-heidelberg.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.

uni-heidelberg.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.