cuni.cz Website Information

Daily Unique Visits: 553,529

Daily Page Views: 4,428,232

Income Per Day: $4,428

Estimated Value: $4,782,240

This website is located in Czech Republic and is using following IP address 195.113.89.35. See the complete list of popular websites hosted in Czech Republic.

cuni.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.

Website cuni.cz is using the following name servers:

nsa.ces.net
cuce.ruk.cuni.cz
david.ruk.cuni.cz
golias.ruk.cuni.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 cuni.cz position in Alexa rank database was 2670 and the lowest rank position was 3207. Current position of cuni.cz in Alexa rank database is 2753.

Desktop speed score of cuni.cz (35/100) is better than the results of 11.34% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of cuni.cz (64/100) is better than the results of 11.2% of other sites and means that the page is not mobile-friendly.

Mobile speed score of cuni.cz (31/100) is better than the results of 10.59% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

cuni.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.

cuni.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.

% (c) 2006-2021 CZ.NIC, z.s.p.o.
%
% 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: Mon Aug 29 01:58:44 2022

domain: cuni.cz
registrant: SB:CUNI
admin-c: VH14
nsset: NSS:CUNI:2
keyset: CUNI
registrar: REG-INTERNET-CZ
registered: 10.03.1996 01:00:00
changed: 14.05.2018 08:33:56
expire: 10.10.2025

contact: SB:CUNI
org: Univerzita Karlova
name: Vladimír Horák
address: Ovocný trh 560/5
address: Praha 1
address: 116 36
address: CZ
phone: +420.224491235
fax-no: +420.224491588
e-mail: hostmaster@cuni.cz
registrar: REG-INTERNET-CZ
created: 10.08.2001 22:13:00
changed: 19.01.2022 14:48:04

contact: VH14
name: Vladimir Horak
address: Seydlerova 2150/5
address: Praha 5
address: 158 00
address: CZ
phone: +420.224491235
fax-no: +420.224491594
e-mail: vhor@cuni.cz
registrar: REG-INTERNET-CZ
created: 10.08.2001 22:13:00
changed: 10.06.2021 12:06:03

nsset: NSS:CUNI:2
nserver: cuce.ruk.cuni.cz (195.113.0.8, 2001:718:1e03:1::8)
nserver: david.ruk.cuni.cz (78.128.213.242, 2001:718:1203:502::2)
nserver: golias.ruk.cuni.cz (195.113.0.2, 2001:718:1e03:1::2)
nserver: nsa.ces.net
tech-c: SB:CUNI
tech-c: VH14
registrar: REG-INTERNET-CZ
created: 01.10.2007 02:00:00
changed: 07.05.2020 10:12:06

keyset: CUNI
dnskey: 257 3 13 lkhf2k/fibAkAhLMq6x0l7LyUqiY1Lr3Ri4hAGFQn1e/73pSvZLMIm6mc5KJItRdqBQcS7/VgbaiWpJNB4hOFw==
tech-c: SB:CUNI
tech-c: VH14
registrar: REG-INTERNET-CZ
created: 14.05.2018 08:31:04

cuni.cz server information

Servers Location

cuni.cz desktop page speed rank

Last tested: 2017-05-30

Desktop Speed Bad

35/100

cuni.cz Desktop Speed Test Quick Summary

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cuni.cz Desktop Resource Breakdown

Total Resources	105
Number of Hosts	16
Static Resources	74
JavaScript Resources	30
CSS Resources	8

cuni.cz mobile page speed rank

Last tested: 2017-05-30

Mobile Speed Bad

31/100

cuni.cz Mobile Speed Test Quick Summary

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

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priority - 35Leverage browser caching

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priority - 20Enable compression

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priority - 2Minify CSS

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priority - 1Minify HTML

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priority - 0Minify JavaScript

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cuni.cz Mobile Resource Breakdown

Total Resources	105
Number of Hosts	17
Static Resources	75
JavaScript Resources	30
CSS Resources	8

cuni.cz mobile page usability

Last tested: 2017-05-30

Mobile Usability Bad

64/100

cuni.cz Mobile Usability Test Quick Summary

priority - 25Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

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Beru na vědomí renders only 7 pixels tall (17 CSS pixels).

Tato stránka p…žitím cookies. renders only 7 pixels tall (17 CSS pixels).

Hledání osob and 4 others render only 5 pixels tall (13 CSS pixels).

FAKULTY A SOUČÁSTI and 6 others render only 5 pixels tall (14 CSS pixels).

Geografická se…jména Czechia renders only 7 pixels tall (18 CSS pixels).

Věda na UK: sh…Martin Hilský renders only 7 pixels tall (18 CSS pixels).

Your browser d…ats available. renders only 5 pixels tall (14 CSS pixels).

Click here to…t HTML5 video. renders only 5 pixels tall (14 CSS pixels).

Květen 2017 renders only 6 pixels tall (16 CSS pixels).

14 and 8 others render only 5 pixels tall (13 CSS pixels).

10 and 21 others render only 5 pixels tall (13 CSS pixels).

31. květen 201…to den se koná renders only 5 pixels tall (14 CSS pixels).

6 akcí: renders only 5 pixels tall (14 CSS pixels).

1 renders only 5 pixels tall (13 CSS pixels).

2 and 4 others render only 5 pixels tall (13 CSS pixels).

31. května 2017 renders only 5 pixels tall (14 CSS pixels).

Hlavním cílem…i svém studiu. and 6 others render only 5 pixels tall (14 CSS pixels).

Všechny události > renders only 5 pixels tall (14 CSS pixels).

Univerzita Karlova and 2 others render only 5 pixels tall (14 CSS pixels).

Sign in renders only 4 pixels tall (11 CSS pixels).

Charles University in Prague renders only 5 pixels tall (14 CSS pixels).

View larger map renders only 5 pixels tall (12 CSS pixels).

© 2017 Univerz…Thinkstock.com renders only 5 pixels tall (13 CSS pixels).
Přihlášení do…ího systému UK and 1 others render only 5 pixels tall (13 CSS pixels).

priority - 17Size tap targets appropriately

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

The tap target <a href="#null" class="cc_btn cc_btn_accept_all">Beru na vědomí</a> is close to 4 other tap targets.

The tap target <a href="http://iforum.cuni.cz">iForum</a> and 4 others are close to other tap targets.

The tap target <input type="text" name="q"> is close to 6 other tap targets.

The tap target <input type="submit" name=""> is close to 3 other tap targets.

The tap target <a href="http://www.cuni.cz/UKEN-1.html" class="lang"></a> is close to 3 other tap targets.

The tap target <a href="" class="smaller"> is close to 3 other tap targets.

The tap target <a href="" class="bigger"> is close to 3 other tap targets.

The tap target <a href="https://www.fa…verzitaKarlova"></a> and 5 others are close to other tap targets.

The tap target <a href="UK-4.html">Univerzita</a> and 6 others are close to other tap targets.

The tap target <a href="javascript:run…','UK','6305')">‹</a> and 1 others are close to other tap targets.

The tap target <td class="">1</td> and 8 others are close to other tap targets.

The tap target <a href="javascript:run…','UK','6305')">2</a> and 21 others are close to other tap targets.

The tap target <a href="#event-1-1">1</a> is close to 2 other tap targets.

The tap target <a href="#event-1-2">2</a> and 4 others are close to other tap targets.

The tap target <a href="UK-6305.html?e…=14934&lang=cz">Kritické a tvořivé myšlení</a> is close to 1 other tap targets.

The tap target <input type="submit"> is close to 1 other tap targets.

The tap target <a href="https://www.go…erms_maps.html">Terms of Use</a> is close to 2 other tap targets.

The tap target <a href="//accounts.goo…uccess?pb=!1e2">Sign in</a> is close to 1 other tap targets.

The tap target <div></div> and 1 others are close to other tap targets.

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 - 6Size 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 996 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <a href="http://shop.cuni.cz/index.php">E-shop</a> falls outside the viewport.
The element <input type="text" name="q"> falls outside the viewport.
The element <input type="submit" name=""> falls outside the viewport.
The element <a href="http://www.cuni.cz/UKEN-1.html" class="lang"></a> falls outside the viewport.
The element <a href="UK-9.html">Zaměstnanci</a> falls outside the viewport.
The element <img src="UK-8301-version1-afoto.jpg"> falls outside the viewport.
The element <div class="content noBg"></div> falls outside the viewport.
The element <h3>Czechia</h3> falls outside the viewport.
The element <a href="https://www.na…e-to-oficialni">Geografická se…jména Czechia</a> falls outside the viewport.
The element <h2>VIDEO</h2> falls outside the viewport.
The element <p></p> falls outside the viewport.
The element <div id="event-1" class="tab-pane fade in active">‹ Květen 2…24.4. do 26.6.</div> falls outside the viewport.
The element <a href="UK-6305.html?cid=kuniv" class="more">Všechny události ></a> falls outside the viewport.
The element <iframe src="https://www.go…a,Ovocny+trh+3"> falls outside the viewport.
The element <a href="UK-2000.html">Kontakty</a> falls outside the viewport.
The element <div class="scrollToTopHelper"> falls outside the viewport.

cuni.cz HTML validation

Warnings

The “charset” attribute on the “script” element is obsolete.

The “type” attribute is unnecessary for JavaScript resources.

Line: 21 Column: 1 - 84
"....com --> <script type="text/javascript" src="newlayout/js/cookie-consent.js" charset="UTF-8"></scri..." Line: 22 Column: 1 - 47
"...</script> <script type="text/javascript" charset="UTF-8"> docum..." Line: 76 Column: 2 - 131
"...cript--> <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3.exp&key=AIzaSyD_hce37QhlyI59U2KDKiTEJMSlns47d6E"></scrip..." Line: 83 Column: 4 - 72
"...t> <script type="text/javascript" src="events/jsDatePick.min.1.3.cz.js"></scri..." Line: 84 Column: 7 - 61
"...pt> <script type="text/javascript" src="events/default.js"></scri..."

The first occurrence of ID “1” was here.

Line: 824 Column: 111 - 140
"...-19</span><div class="anchorDiv" id="1"></div>..." Line: 824 Column: 111 - 140
"...-19</span><div class="anchorDiv" id="1"></div>..." Line: 824 Column: 111 - 140
"...-19</span><div class="anchorDiv" id="1"></div>..." Line: 824 Column: 111 - 140
"...-19</span><div class="anchorDiv" id="1"></div>..."

A table row was 3 columns wide, which is less than the column count established by the first row (7).

Line: 880 Column: 1006 - 1016
"...k'>31</td> </tr> ..."

Errors

Element “script” must not have attribute “charset” unless attribute “src” is also specified.

Line: 22 Column: 1 - 47
"...</script> <script type="text/javascript" charset="UTF-8"> docum..."

Attribute “cookie-consent” not allowed on element “script” at this point.

Line: 29 Column: 1 - 62
"...ované --> <script type="text/plain" cookie-consent="strictly-necessary"></scri..." Line: 33 Column: 1 - 52
"...tické --> <script type="text/plain" cookie-consent="tracking">(funct..." Line: 43 Column: 1 - 53
"... sítě --> <script type="text/plain" cookie-consent="targeting"></scri..." Line: 47 Column: 1 - 53
"...klama --> <script type="text/plain" cookie-consent="targeting"></scri..."

Bad value “https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700|Open+Sans:300,400,600,700&subset=cyrillic,cyrillic-ext,latin-ext” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Line: 58 Column: 5 - 171
"...s'--> <link href="https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700|Open+Sans:300,400,600,700&subset=cyrillic,cyrillic-ext,latin-ext" rel="stylesheet"> <..."

A “charset” attribute on a “meta” element found after the first 1024 bytes.

Line: 61 Column: - 25
"... charset="utf-8"> <meta htt..."

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

Line: 128 Column: 35 - 101
"...K-1.html"><img src="UK-1-version1-afoto.jpg" class="logoSize mobileLogoSize"></a> ..." Line: 134 Column: 13 - 60
"... <img src="newlayout/images/menu.png" width="45"> ..." Line: 846 Column: 53 - 123
"...5reD4wVE"><img class="hidden" src="https://img.youtube.com/vi/Z3K5reD4wVE/0.jpg"></a> <..."

Bad value “” for attribute “name” on element “input”: Must not be empty.

Line: 162 Column: 17 - 60
"... <input type="submit" name="" value="Hledat"> ..."

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

Line: 608 Column: 5 - 11
"...ng"> <style> ..."

CSS: Parse Error.

Line: 664 Column: - 36
"... div.moreInfo a, { ..."

CSS: “curson”: Property “curson” doesn't exist.

Line: 665 Column: 21 - 27
"... curson: pointer; ..."

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

Line: 699 Column: 3 - 18
"... <p align='left'>Rozces..." Line: 710 Column: 3 - 18
"... <p align='left'>Ve stř..." Line: 721 Column: 3 - 18
"... <p align='left'>Od čer..." Line: 732 Column: 3 - 18
"... <p align='left'>Na zač..." Line: 743 Column: 3 - 18
"... <p align='left'>Díky s..." Line: 743 Column: 226 - 241
"...ovaná.</p><p align='left'> </p>..." Line: 754 Column: 3 - 18
"... <p align='left'>V úter..." Line: 765 Column: 3 - 18
"... <p align='left'>Nebyto..." Line: 776 Column: 3 - 18
"... <p align='left'>„Teď j..." Line: 787 Column: 3 - 18
"... <p align='left'>S hlub..." Line: 798 Column: 3 - 18
"... <p align='left'>Po tis..." Line: 809 Column: 3 - 18
"... <p align='left'>Tým Ja..." Line: 820 Column: 3 - 18
"... <p align='left'>„Baví ..." Line: 825 Column: 1 - 16
"...wHidden"> <p align="left"> <tabl..." Line: 833 Column: 1 - 16
"...op"> <br> <p align="left">Průběž..." Line: 834 Column: 1 - 16
"...te;ch</p> <p align="left">a sděl..." Line: 841 Column: 1 - 16
"...ble> </p> <p align="left"><hr></..." Line: 844 Column: 1 - 16
"...wHidden"> <p align="left"> <ifra..." Line: 902 Column: 25 - 40
"... <p align='left'>Série ..." Line: 928 Column: 1 - 16
"...wHidden"> <p align="left"><hr></..." Line: 929 Column: 1 - 16
"...><hr></p> <p align="left"> <tabl..." Line: 933 Column: 1 - 16
"...gn="top"> <p align="left"> <span..." Line: 938 Column: 1 - 16
"...gn="top"> <p align="left"> <span..." Line: 942 Column: 1 - 17
"...gn="top"> <p align="right"> <span..." Line: 949 Column: 1 - 16
"...ble> </p> <p align="left"><hr></..." Line: 969 Column: 1 - 16
"...wHidden"> <p align="left"> <b>Un..." Line: 972 Column: 1 - 16
"...</b> </p> <p align="left">Ovocn&..." Line: 973 Column: 1 - 16
"...560/5</p> <p align="left">Praha ..." Line: 974 Column: 1 - 16
"...16 36</p> <p align="left">Česk&a..." Line: 976 Column: 1 - 16
"...</p> <br> <p align="left">Identi..." Line: 977 Column: 1 - 16
"...yj9b4</p> <p align="left"> <b>IČ..." Line: 979 Column: 1 - 16
"...bsp; </p> <p align="left"> <b>DI..." Line: 992 Column: 1 - 16
"...wHidden"> <p align="left"> <ifra..."

The “width” attribute on the “table” element is obsolete. Use CSS instead.

Line: 826 Column: 1 - 62
"...n="left"> <table class="table-border-nula" width="" border="0" rules=""> <tr> ..." Line: 930 Column: 1 - 62
"...n="left"> <table class="table-border-nula" width="" border="0" rules=""> <tr> ..."

The “rules” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “width” attribute on the “td” element is obsolete. Use CSS instead.

Line: 828 Column: 5 - 55
"...s=""> <tr> <td width="16" bgcolor="#e8e2e2" align="" valign="top"> <br> ..." Line: 831 Column: 6 - 61
"...<br> </td><td width="308" bgcolor="#e8e2e2" align="" valign="top"> <br> ..." Line: 932 Column: 5 - 49
"...s=""> <tr> <td width="323" bgcolor="" align="" valign="top"> <p al..." Line: 937 Column: 6 - 54
"...<br> </td><td width="338" bgcolor="" align="" valign="top"> <p al..." Line: 941 Column: 6 - 54
"...</p> </td><td width="188" bgcolor="" align="" valign="top"> <p al..."

The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.

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

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

No “p” element in scope but a “p” end tag seen.

Line: 840 Column: 1 - 4
"... </table> </p> <p al..." Line: 841 Column: 21 - 24
"...left"><hr></p> </div..." Line: 902 Column: 278 - 281
"... </p> ..." Line: 928 Column: 21 - 24
"...left"><hr></p> <p al..." Line: 948 Column: 1 - 4
"... </table> </p> <p al..." Line: 949 Column: 21 - 24
"...left"><hr></p> </div..."

Duplicate ID “1”.

Line: 843 Column: 123 - 152
"...deo</span><div class="anchorDiv" id="1"></div>..." Line: 927 Column: 96 - 125
"...e"></span><div class="anchorDiv" id="1"></div>..." Line: 968 Column: 6 - 35
"...er"> <div class="anchorDiv" id="1"></div>..." Line: 991 Column: 6 - 35
"...l "> <div class="anchorDiv" id="1"></div>..."

Bad value “yes” for attribute “allowfullscreen” on element “iframe”.

Line: 845 Column: 1 - 119
"...n="left"> <iframe width="970" height="510" src="https://www.youtube.com/embed/Z3K5reD4wVE" frameborder="0" allowfullscreen="yes"></ifra..."

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

Line: 845 Column: 1 - 119
"...n="left"> <iframe width="970" height="510" src="https://www.youtube.com/embed/Z3K5reD4wVE" frameborder="0" allowfullscreen="yes"></ifra..." Line: 993 Column: 1 - 195
"...n="left"> <iframe width="306" height="200" src="https://www.google.com/maps/embed/v1/place?key=AIzaSyBTQ7v2408wXPLp-nAu_ifkT44_7AaCLZ0&q=Univerzita+Karlova,Ovocny+trh+3" frameborder="0" scrolling="no"></ifra..."

Attribute “showasbtn” not allowed on element “a” at this point.

Line: 902 Column: 152 - 227
"... místech. <a href='https://www.tydenudrzitelnosti.cz/' target='_blank' showAsBtn='No'>Více i..."

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

Line: 993 Column: 1 - 195
"...n="left"> <iframe width="306" height="200" src="https://www.google.com/maps/embed/v1/place?key=AIzaSyBTQ7v2408wXPLp-nAu_ifkT44_7AaCLZ0&q=Univerzita+Karlova,Ovocny+trh+3" frameborder="0" scrolling="no"></ifra..."

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cuni.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.

cuni.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.

CUNI.CZ Univerzita Karlova

cuni.cz Website Information

Advertisement

cuni.cz Alexa Rank

cuni.cz whois

cuni.cz server information

Servers Location

cuni.cz desktop page speed rank

cuni.cz Desktop Speed Test Quick Summary

priority - 143Optimize images

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

Optimize the following images to reduce their size by 1.4MiB (79% reduction).

priority - 23Leverage 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:

priority - 20Enable 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 192.2KiB (80% reduction).

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

Your page has 8 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 2Minify 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 17.9KiB (16% 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 8.3KiB (27% reduction).

priority - 0Minify 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 2.3KiB (30% reduction).

cuni.cz Desktop Resource Breakdown

cuni.cz mobile page speed rank

cuni.cz Mobile Speed Test Quick Summary

priority - 140Optimize images

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

Optimize the following images to reduce their size by 1.3MiB (77% reduction).

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

Your page has 8 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 35Leverage 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:

priority - 20Enable 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 192.2KiB (80% reduction).

priority - 2Minify 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 17.9KiB (16% 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 8.3KiB (27% reduction).

priority - 0Minify 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 2.3KiB (30% reduction).

cuni.cz Mobile Resource Breakdown

cuni.cz mobile page usability

cuni.cz Mobile Usability Test Quick Summary

priority - 25Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

priority - 17Size 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.

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 - 6Size 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 996 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

cuni.cz HTML validation

Warnings

The “charset” attribute on the “script” element is obsolete.

The “type” attribute is unnecessary for JavaScript resources.

The first occurrence of ID “1” was here.

A table row was 3 columns wide, which is less than the column count established by the first row (7).

Errors

Element “script” must not have attribute “charset” unless attribute “src” is also specified.

Attribute “cookie-consent” not allowed on element “script” at this point.

Bad value “https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700|Open+Sans:300,400,600,700&subset=cyrillic,cyrillic-ext,latin-ext” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.