zcu.cz Website Information
Daily Unique Visits: 92,091
Daily Page Views: 552,546
Income Per Day: $1,105
Estimated Value: $795,600
This website is located in Czech Republic and is using following IP address 147.228.58.100. See the complete list of popular websites hosted in Czech Republic.
zcu.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
Website zcu.cz is using the following name servers:
- hera.zcu.cz
- erebos.zcu.cz
- virgo.jcu.cz
and is probably hosted by CESNET z.s.p.o.. See the full list of other websites hosted by CESNET z.s.p.o..
The highest website zcu.cz position in Alexa rank database was 14660 and the lowest rank position was 17767. Current position of zcu.cz in Alexa rank database is 15574.
Desktop speed score of zcu.cz (57/100) is better than the results of 31.79% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of zcu.cz (79/100) is better than the results of 25.07% of other sites and means that the page is not mobile-friendly.
Mobile speed score of zcu.cz (45/100) is better than the results of 25.64% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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zcu.cz 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.
zcu.cz 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.
%
% Intended use of supplied data and information
%
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
%
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
%
% See also a search service at http://www.nic.cz/whois/
%
%
% Whoisd Server Version: 3.12.2
% Timestamp: Sun May 02 19:29:07 2021
domain: zcu.cz
registrant: SB:VR3-RIPE_XX
admin-c: DNS-ADMIN-ZCU
nsset: ZCU-NIC
registrar: REG-ACTIVE24
registered: 10.11.1996 01:00:00
changed: 18.08.2017 12:55:53
expire: 20.10.2027
contact: SB:VR3-RIPE_XX
org: University of West Bohemia
name: University of West Bohemia
address: Laboratory for Computer Science
address: Univerzitni 20 Plzen
address: 30614
address: CZ
registrar: REG-ACTIVE24
created: 10.08.2001 22:13:00
changed: 20.11.2018 11:32:57
contact: DNS-ADMIN-ZCU
name: Petr Grolmus
registrar: REG-INTERNET-CZ
created: 28.07.2014 10:25:13
changed: 15.05.2018 21:32:00
nsset: ZCU-NIC
nserver: hera.zcu.cz (147.228.10.10, 2001:718:1801:1010::1:10)
nserver: erebos.zcu.cz (147.228.24.24, 2001:718:1801:6024::1:24)
nserver: virgo.jcu.cz
tech-c: DNS-ADMIN-ZCU
registrar: REG-ACTIVE24
created: 18.08.2017 10:42:17
zcu.cz server information
Servers Location
zcu.cz desktop page speed rank
Last tested: 2017-05-14
zcu.cz Desktop Speed Test Quick Summary
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priority - 11Leverage browser caching
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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
http://zcu.cz/resources/css/zcu/zcu-titulka.css
http://zcu.cz/extra.css
priority - 0Minify 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 1.8KiB (23% reduction).
priority - 0Minify 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 621B (11% reduction).
zcu.cz Desktop Resource Breakdown
Total Resources | 30 |
Number of Hosts | 3 |
Static Resources | 23 |
CSS Resources | 3 |
zcu.cz mobile page speed rank
Last tested: 2017-04-29
zcu.cz Mobile Speed Test Quick Summary
priority - 81Optimize images
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priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
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priority - 19Leverage 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.
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priority - 0Minify 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 2KiB (24% reduction).
priority - 0Minify 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 621B (11% reduction).
zcu.cz Mobile Resource Breakdown
Total Resources | 33 |
Number of Hosts | 3 |
Static Resources | 26 |
CSS Resources | 3 |
zcu.cz mobile page usability
Last tested: 2017-04-29
zcu.cz Mobile Usability Test Quick Summary
priority - 17Size content to viewport
The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.
The page content is 940 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:
<a id="fsa_1" href="javascript:void(0);" class="fs active"></a>
falls outside the viewport.The element
<a id="fsa_2" href="javascript:void(0);" class="fs"></a>
falls outside the viewport.The element
<a id="fsa_3" href="javascript:void(0);" class="fs"></a>
falls outside the viewport.The element
<a id="fsa_4" href="javascript:void(0);" class="fs"></a>
falls outside the viewport.The element
<a id="fsa_5" href="javascript:void(0);" class="fs"></a>
falls outside the viewport.The element
<a id="fsa_6" href="javascript:void(0);" class="fs"></a>
falls outside the viewport.The element
<a id="fsa_7" href="javascript:void(0);" class="fs"></a>
falls outside the viewport.The element
<a id="fsa_8" href="javascript:void(0);" class="fs"></a>
falls outside the viewport.priority - 9Size 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.
<a href="/" class="">Česky</a>
is close to 1 other tap targets.<a href="/en/" class="unselected">English</a>
is close to 2 other tap targets.<input type="submit">
is close to 1 other tap targets.<a href="/study/">Studium</a>
and 4 others are close to other tap targets.<a href="/media/about/contact.html">Kontakty</a>
is close to 1 other tap targets.The tap target
<div id="fs_1" class="foto_switcher"></div>
is close to 2 other tap targets.The tap target
<div id="fs_1" class="foto_switcher"></div>
and 1 others are close to other tap targets.The tap target
<div id="fs_1" class="foto_switcher"></div>
and 13 others are close to other tap targets.The tap target
<a id="fsa_1" href="javascript:void(0);" class="fs active"></a>
is close to 2 other tap targets.The tap target
<a id="fsa_2" href="javascript:void(0);" class="fs"></a>
and 6 others are close to other tap targets.The tap target
<a href="/media/about/U…nes/index.html" class="alt">Profil ZČU</a>
and 38 others are close to other tap targets.The tap target
<a href="/odkazy/index-paticka/portal" class="alt">Portál ZČU</a>
and 10 others are close to other tap targets.zcu.cz HTML validation
Errors
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
"... <html lang="cs"> <head..."
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
"...F-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <..."
Attribute “name” not allowed on element “div” at this point.
"... <div name="fsa" id="fs_1" class="foto_switcher" style="display: block;top:10px;right:5px;"> ..." Line: 287 Column: 37 - 83
"... <div name="fsa" id="fs_2" class="foto_switcher" style="display: none;top:10px;right:5px;"> ..." Line: 327 Column: 37 - 83
"... <div name="fsa" id="fs_3" class="foto_switcher" style="display: none;top:10px;right:5px;"> ..." Line: 367 Column: 37 - 83
"... <div name="fsa" id="fs_4" class="foto_switcher" style="display: none;top:10px;right:5px;"> ..."
Duplicate ID “fsa_1”.
"... <a style="z-index: 1000" id="fsa_1" href="javascript:void(0);" class="fs " onclick="changeP('1');return false"> ..." Line: 331 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_1" href="javascript:void(0);" class="fs " onclick="changeP('1');return false"> ..." Line: 371 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_1" href="javascript:void(0);" class="fs " onclick="changeP('1');return false"> ..."
Duplicate ID “fsa_2”.
"... <a style="z-index: 1000" id="fsa_2" href="javascript:void(0);" class="fs active" onclick="changeP('2');return false"> ..." Line: 335 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_2" href="javascript:void(0);" class="fs " onclick="changeP('2');return false"> ..." Line: 375 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_2" href="javascript:void(0);" class="fs " onclick="changeP('2');return false"> ..."
Duplicate ID “fsa_3”.
"... <a style="z-index: 1000" id="fsa_3" href="javascript:void(0);" class="fs " onclick="changeP('3');return false"> ..." Line: 339 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_3" href="javascript:void(0);" class="fs active" onclick="changeP('3');return false"> ..." Line: 379 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_3" href="javascript:void(0);" class="fs " onclick="changeP('3');return false"> ..."
Duplicate ID “fsa_4”.
"... <a style="z-index: 1000" id="fsa_4" href="javascript:void(0);" class="fs " onclick="changeP('4');return false"> ..." Line: 343 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_4" href="javascript:void(0);" class="fs " onclick="changeP('4');return false"> ..." Line: 383 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_4" href="javascript:void(0);" class="fs active" onclick="changeP('4');return false"> ..."
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
"...> <div id="" class="aktuality" style="padding:0;display: block;"> ..."
Warnings
The first occurrence of ID “fsa_1” was here.
"... <a style="z-index: 1000" id="fsa_1" href="javascript:void(0);" class="fs active" onclick="changeP('1');return false"> ..." Line: 243 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_1" href="javascript:void(0);" class="fs active" onclick="changeP('1');return false"> ..." Line: 243 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_1" href="javascript:void(0);" class="fs active" onclick="changeP('1');return false"> ..."
The first occurrence of ID “fsa_2” was here.
"... <a style="z-index: 1000" id="fsa_2" href="javascript:void(0);" class="fs " onclick="changeP('2');return false"> ..." Line: 247 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_2" href="javascript:void(0);" class="fs " onclick="changeP('2');return false"> ..." Line: 247 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_2" href="javascript:void(0);" class="fs " onclick="changeP('2');return false"> ..."
The first occurrence of ID “fsa_3” was here.
"... <a style="z-index: 1000" id="fsa_3" href="javascript:void(0);" class="fs " onclick="changeP('3');return false"> ..." Line: 251 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_3" href="javascript:void(0);" class="fs " onclick="changeP('3');return false"> ..." Line: 251 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_3" href="javascript:void(0);" class="fs " onclick="changeP('3');return false"> ..."
The first occurrence of ID “fsa_4” was here.
"... <a style="z-index: 1000" id="fsa_4" href="javascript:void(0);" class="fs " onclick="changeP('4');return false"> ..." Line: 255 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_4" href="javascript:void(0);" class="fs " onclick="changeP('4');return false"> ..." Line: 255 Column: 41 - 79
"... <a style="z-index: 1000" id="fsa_4" href="javascript:void(0);" class="fs " onclick="changeP('4');return false"> ..."
Empty heading.
"... <h2 class="clanek_titulek"></h2> ..." Line: 1032 Column: 21 - 47
"... <h2 class="clanek_titulek"></h2> ..."
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zcu.cz 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.
zcu.cz 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.