czu.cz Website Information
Daily Unique Visits: 52,517
Daily Page Views: 315,102
Income Per Day: $630
Estimated Value: $453,600
This website is located in Czech Republic and is using following IP address 193.84.47.38. See the complete list of popular websites hosted in Czech Republic.
czu.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
Website czu.cz is using the following name servers:
- ns1.czu.cz
- ns2.czu.cz
- nsa.ces.net
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 czu.cz position in Alexa rank database was 26881 and the lowest rank position was 27539. Current position of czu.cz in Alexa rank database is 27310.
Desktop speed score of czu.cz (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 czu.cz (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed score of czu.cz (52/100) is better than the results of 37.6% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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czu.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.
czu.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.
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czu.cz server information
Servers Location
czu.cz desktop page speed rank
Last tested: 2018-08-22
Desktop Speed
Bad
59/100
czu.cz Desktop Speed Test Quick Summary
priority - 24Optimize images
Properly formatting and compressing images can save many bytes of data.
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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:
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https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
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https://www.czu.cz/vendor/jBox/css/jBox.css (expiration not specified)
https://www.czu.cz/vendor/jBox/js/jBox.min.js (expiration not specified)
https://www.czu.cz/vendor/jquery/jquery-1.11.1.js (expiration not specified)
https://www.czu.cz/vendor/layzr/layzr.min.js (expiration not specified)
https://www.czu.cz/vendor/modernizr/modernizr-3.5.0.js (expiration not specified)
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https://www.czu.cz/vendor/pushy/css/pushy.css (expiration not specified)
https://www.czu.cz/vendor/pushy/img/arrow.svg (expiration not specified)
https://www.czu.cz/vendor/pushy/js/pushy.js (expiration not specified)
https://www.czu.cz/vendor/swiper/css/swiper.css (expiration not specified)
https://www.czu.cz/vendor/swiper/js/swiper.jquery.js (expiration not specified)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.czu.cz/vendor/modernizr/modernizr-3.5.0.js
https://www.czu.cz/vendor/jquery/jquery-1.11.1.js
https://www.czu.cz/vendor/czu/czu.js
https://www.czu.cz/vendor/nette/nette.ajax.js
https://www.czu.cz/vendor/jBox/js/jBox.min.js
https://www.czu.cz/vendor/swiper/js/swiper.jquery.js
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https://www.czu.cz/vendor/swiper/js/swiper.jquery.js
Optimize CSS Delivery of the following:
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https://www.czu.cz/vendor/jBox/css/jBox.css
https://www.czu.cz/vendor/swiper/css/swiper.css
https://www.czu.cz/vendor/pushy/css/pushy.css
https://www.czu.cz/vendor/jBox/css/jBox.css
https://www.czu.cz/vendor/swiper/css/swiper.css
https://www.czu.cz/vendor/pushy/css/pushy.css
priority - 6Reduce server response time
priority - 6Minify 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 54.9KiB (42% reduction).
Minifying https://www.czu.cz/vendor/jquery/jquery-1.11.1.js could save 41.3KiB (50% reduction) after compression.
Minifying https://www.czu.cz/vendor/swiper/js/swiper.jquery.js could save 7.7KiB (30% reduction) after compression.
Minifying https://www.czu.cz/vendor/bootstrap/bootstrap.js could save 3.2KiB (24% reduction) after compression.
Minifying https://www.czu.cz/vendor/nette/nette.ajax.js could save 1.1KiB (28% reduction) after compression.
Minifying https://www.czu.cz/vendor/czu/czu.js could save 858B (26% reduction) after compression.
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priority - 3Avoid 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://czu.cz/
https://www.czu.cz/
https://www.czu.cz/cs/
https://www.czu.cz/
https://www.czu.cz/cs/
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 805B (20% reduction).
Minifying https://www.czu.cz/vendor/swiper/css/swiper.css could save 509B (17% reduction) after compression.
Minifying https://www.czu.cz/vendor/pushy/css/pushy.css could save 296B (29% reduction) after compression.
Minifying https://www.czu.cz/vendor/pushy/css/pushy.css could save 296B (29% reduction) after compression.
czu.cz Desktop Resource Breakdown
| Total Resources | 67 |
| Number of Hosts | 9 |
| Static Resources | 51 |
| JavaScript Resources | 15 |
| CSS Resources | 5 |
czu.cz mobile page speed rank
Last tested: 2017-05-18
Mobile Speed
Bad
52/100
czu.cz Mobile Speed Test Quick Summary
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.czu.cz/js/vendor/modernizr-2.6.2-respond-1.1.0.min.js
https://www.czu.cz/js/vendor/jquery-1.11.1.js
https://www.czu.cz/js/czu.js
https://www.czu.cz/js/vendor/nette.ajax.js
https://www.czu.cz/vendor/jBox/js/jBox.min.js
https://www.czu.cz/vendor/swiper/js/swiper.jquery.js
https://www.czu.cz/js/vendor/jquery-1.11.1.js
https://www.czu.cz/js/czu.js
https://www.czu.cz/js/vendor/nette.ajax.js
https://www.czu.cz/vendor/jBox/js/jBox.min.js
https://www.czu.cz/vendor/swiper/js/swiper.jquery.js
Optimize CSS Delivery of the following:
https://www.czu.cz/skins/default/css/style.css
https://www.czu.cz/vendor/jBox/css/jBox.css
https://www.czu.cz/vendor/swiper/css/swiper.css
https://www.czu.cz/vendor/pushy/css/pushy.css
https://www.czu.cz/vendor/jBox/css/jBox.css
https://www.czu.cz/vendor/swiper/css/swiper.css
https://www.czu.cz/vendor/pushy/css/pushy.css
priority - 25Leverage 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.czu.cz/cache/article-data/czu/logo-footer.png (expiration not specified)
https://www.czu.cz/cache/article-data/czu/logo.png (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_001.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_002.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_003.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_004.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_005.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_006.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_007.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_008.jpg (expiration not specified)
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https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_010.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_011.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_012.jpg (expiration not specified)
https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_013.jpg (expiration not specified)
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https://www.czu.cz/img/loader.gif (expiration not specified)
https://www.czu.cz/js/czu.js (expiration not specified)
https://www.czu.cz/js/vendor/bootstrap.js (expiration not specified)
https://www.czu.cz/js/vendor/jquery-1.11.1.js (expiration not specified)
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https://www.czu.cz/vendor/swiper/css/swiper.css (expiration not specified)
https://www.czu.cz/vendor/swiper/js/swiper.jquery.js (expiration not specified)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.czu.cz/cache/article-data/czu/logo.png (expiration not specified)
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https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_003.jpg (expiration not specified)
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https://www.czu.cz/js/czu.js (expiration not specified)
https://www.czu.cz/js/vendor/bootstrap.js (expiration not specified)
https://www.czu.cz/js/vendor/jquery-1.11.1.js (expiration not specified)
https://www.czu.cz/js/vendor/modernizr-2.6.2-respond-1.1.0.min.js (expiration not specified)
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https://www.czu.cz/skins/default/css/style.css (expiration not specified)
https://www.czu.cz/vendor/jBox/css/jBox.css (expiration not specified)
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https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 13Reduce server response time
priority - 10Avoid 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://czu.cz/
https://www.czu.cz/
https://www.czu.cz/cs/
https://www.czu.cz/
https://www.czu.cz/cs/
priority - 8Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 74.7KiB (51% reduction).
Compressing https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_013.jpg could save 22.9KiB (82% reduction).
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Compressing https://www.czu.cz/cache/article-data/czu/logo.png could save 2.2KiB (12% reduction).
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Compressing https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_006.jpg could save 1.3KiB (34% reduction).
Compressing https://www.czu.cz/cache/article-data/czu/mini%20Bannery/banery_005.jpg could save 1.3KiB (23% reduction).
priority - 6Minify 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 54.7KiB (42% reduction).
Minifying https://www.czu.cz/js/vendor/jquery-1.11.1.js could save 41.3KiB (50% reduction) after compression.
Minifying https://www.czu.cz/vendor/swiper/js/swiper.jquery.js could save 7.8KiB (30% reduction) after compression.
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Minifying https://www.czu.cz/vendor/swiper/js/swiper.jquery.js could save 7.8KiB (30% reduction) after compression.
Minifying https://www.czu.cz/js/vendor/bootstrap.js could save 3.2KiB (24% reduction) after compression.
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czu.cz Mobile Resource Breakdown
| Total Resources | 50 |
| Number of Hosts | 10 |
| Static Resources | 37 |
| JavaScript Resources | 15 |
| CSS Resources | 5 |
czu.cz mobile page usability
Last tested: 2017-05-18
Mobile Usability
Good
100/100
czu.cz HTML validation
Errors
Attribute “xmlns:og” not allowed here.
Line: 5 Column: 23 - 82
"...E 8]><!--> <html class="no-js" lang="cs" xmlns:og="http://ogp.me/ns#"> <!--<..."
"...E 8]><!--> <html class="no-js" lang="cs" xmlns:og="http://ogp.me/ns#"> <!--<..."
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Line: 45 Column: 3 - 117
"...ČZU" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-192x192.png" sizes="192x192" /> <li..." Line: 46 Column: 3 - 117
"...192" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-180x180.png" sizes="180x180" /> <li..." Line: 47 Column: 3 - 117
"...180" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-152x152.png" sizes="152x152" /> <li..." Line: 48 Column: 3 - 117
"...152" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-144x144.png" sizes="144x144" /> <li..." Line: 49 Column: 3 - 117
"...144" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-120x120.png" sizes="120x120" /> <li..." Line: 50 Column: 3 - 117
"...120" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-114x144.png" sizes="114x144" /> <li..." Line: 51 Column: 3 - 113
"...144" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-76x76.png" sizes="76x76" /> <li..." Line: 52 Column: 3 - 113
"...x76" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-72x72.png" sizes="72x72" /> <li..." Line: 53 Column: 3 - 113
"...x72" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-60x60.png" sizes="60x60" /> <li..." Line: 54 Column: 3 - 113
"...x60" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-57x57.png" sizes="57x57" /> <li..."
"...ČZU" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-192x192.png" sizes="192x192" /> <li..." Line: 46 Column: 3 - 117
"...192" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-180x180.png" sizes="180x180" /> <li..." Line: 47 Column: 3 - 117
"...180" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-152x152.png" sizes="152x152" /> <li..." Line: 48 Column: 3 - 117
"...152" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-144x144.png" sizes="144x144" /> <li..." Line: 49 Column: 3 - 117
"...144" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-120x120.png" sizes="120x120" /> <li..." Line: 50 Column: 3 - 117
"...120" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-114x144.png" sizes="114x144" /> <li..." Line: 51 Column: 3 - 113
"...144" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-76x76.png" sizes="76x76" /> <li..." Line: 52 Column: 3 - 113
"...x76" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-72x72.png" sizes="72x72" /> <li..." Line: 53 Column: 3 - 113
"...x72" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-60x60.png" sizes="60x60" /> <li..." Line: 54 Column: 3 - 113
"...x60" /> <link rel="apple-touch-icon-precomposed" href="/cache/media-library/871c1462450980-57x57.png" sizes="57x57" /> <li..."
Duplicate attribute “action”.
Line: 92 Column: - 36
"...search/" action="GET"> <..."
"...search/" action="GET"> <..."
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Line: 108 Column: 6 - 130
"...on"> <a href="#" id="departments" class="as-link" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> ..."
"...on"> <a href="#" id="departments" class="as-link" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> ..."
Stray end tag “noscript”.
Line: 240 Column: 213 - 223
"...h.jpg')'"></noscript> <..."
"...h.jpg')'"></noscript> <..."
End tag “a” violates nesting rules.
Line: 247 Column: 4 - 7
"...</div> </a> ..."
"...</div> </a> ..."
Cannot recover after last error. Any further errors will be ignored.
Line: 247 Column: 4 - 7
"...</div> </a> ..."
"...</div> </a> ..."
Warnings
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Line: 5 Column: 23 - 82
"...E 8]><!--> <html class="no-js" lang="cs" xmlns:og="http://ogp.me/ns#"> <!--<..."
"...E 8]><!--> <html class="no-js" lang="cs" xmlns:og="http://ogp.me/ns#"> <!--<..."
The “link” role is unnecessary for element “a”.
Line: 152 Column: 2 - 137
"...tbox" > <a href="https://www.facebook.com/CZUvPraze/" role="link" title="Odkaz na Facebook" aria-label="Odkaz na Facebook" class="social-link"> <i ..." Line: 156 Column: 2 - 129
"...> </a> <a href="https://twitter.com/czuvpraze" role="link" title="Odkaz na Twitter" aria-label="Odkaz na Twitter" class="social-link"> <i ..." Line: 160 Column: 2 - 137
"...> </a> <a href="https://plus.google.com/+czu/" role="link" title="Odkaz na Google Plus" aria-label="Odkaz na Google Plus" class="social-link"> <i ..." Line: 164 Column: 2 - 156
"...> </a> <a href="https://www.youtube.com/channel/UCDIQBX8doKoDzYidP7ai5Pg" role="link" title="Odkaz na Youtube" aria-label="Odkaz na Youtube" class="social-link"> <i ..." Line: 169 Column: 2 - 106
"... </a> <a href="" role="link" title="Odkaz na Sharepoint" aria-label="Odkaz na Sharepoint" class="social-link"> <i ..." Line: 176 Column: 2 - 70
"...gion"> <a href="/" title="Česká zemědělská univerzita v Praze" role="link" > <im..."
"...tbox" > <a href="https://www.facebook.com/CZUvPraze/" role="link" title="Odkaz na Facebook" aria-label="Odkaz na Facebook" class="social-link"> <i ..." Line: 156 Column: 2 - 129
"...> </a> <a href="https://twitter.com/czuvpraze" role="link" title="Odkaz na Twitter" aria-label="Odkaz na Twitter" class="social-link"> <i ..." Line: 160 Column: 2 - 137
"...> </a> <a href="https://plus.google.com/+czu/" role="link" title="Odkaz na Google Plus" aria-label="Odkaz na Google Plus" class="social-link"> <i ..." Line: 164 Column: 2 - 156
"...> </a> <a href="https://www.youtube.com/channel/UCDIQBX8doKoDzYidP7ai5Pg" role="link" title="Odkaz na Youtube" aria-label="Odkaz na Youtube" class="social-link"> <i ..." Line: 169 Column: 2 - 106
"... </a> <a href="" role="link" title="Odkaz na Sharepoint" aria-label="Odkaz na Sharepoint" class="social-link"> <i ..." Line: 176 Column: 2 - 70
"...gion"> <a href="/" title="Česká zemědělská univerzita v Praze" role="link" > <im..."
The “region” role is unnecessary for element “section”.
Line: 174 Column: 64 - 139
"...on--logo"><section class="webcore-widget widget--image" id="widget-247" role="region"> <a..."
"...on--logo"><section class="webcore-widget widget--image" id="widget-247" role="region"> <a..."
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Line: 174 Column: 64 - 139
"...on--logo"><section class="webcore-widget widget--image" id="widget-247" role="region"> <a..."
"...on--logo"><section class="webcore-widget widget--image" id="widget-247" role="region"> <a..."
The “navigation” role is unnecessary for element “nav”.
Line: 180 Column: 68 - 184
"...mainMenu"><nav id="nav" role="navigation" class="webcore-widget widget-main-menu widget-main-menu__full hidden-xs hidden-sm " > <u..."
"...mainMenu"><nav id="nav" role="navigation" class="webcore-widget widget-main-menu widget-main-menu__full hidden-xs hidden-sm " > <u..."
The “main” role is unnecessary for element “main”.
Line: 228 Column: 1 - 49
"... <main id="content" class="container" role="main"> <d..."
"... <main id="content" class="container" role="main"> <d..."
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czu.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.
czu.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.