cas.cz Website Information
Daily Unique Visits: 268,712
Daily Page Views: 2,149,696
Income Per Day: $2,150
Estimated Value: $2,322,000
This website is located in Czech Republic and is using following IP address 147.231.163.211. See the complete list of popular websites hosted in Czech Republic.
cas.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
Website cas.cz is using the following name servers:
- visla.utia.cas.cz
- academy.cas.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 cas.cz position in Alexa rank database was 5146 and the lowest rank position was 6236. Current position of cas.cz in Alexa rank database is 5671.
Desktop speed score of cas.cz (70/100) is better than the results of 50.91% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of cas.cz (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 cas.cz (60/100) is better than the results of 54.7% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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cas.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.
cas.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: Tue Apr 27 02:29:54 2021
domain: cas.cz
registrant: SB:SSC-AV-CR
admin-c: INDRAMIR
admin-c: VANICEKP
nsset: NSS:SSC-AV-CR:1
keyset: KEY-CASCZ2
registrar: REG-INTERNET-CZ
registered: 06.10.1996 02:00:00
changed: 19.03.2019 11:32:15
expire: 29.10.2021
contact: SB:SSC-AV-CR
org: Středisko společných činností AV ČR, v.v.i.
name: Středisko společných činností AV ČR, v.v.i.
address: Narodni 3
address: Praha 1
address: 110 00
address: CZ
registrar: REG-INTERNET-CZ
created: 06.07.2002 00:31:00
changed: 15.05.2018 21:32:00
contact: INDRAMIR
name: Miroslav Indra
address: Národní 3
address: Praha 1
address: 110 00
address: CZ
registrar: REG-INTERNET-CZ
created: 03.07.2002 16:06:00
changed: 15.05.2018 21:32:00
contact: VANICEKP
name: Petr Vanicek
address: Pod vodarenskou vezi 4
address: Praha 8 - Liben
address: 182 08
address: CZ
registrar: REG-INTERNET-CZ
created: 03.07.2002 16:01:00
changed: 29.04.2014 11:42:59
nsset: NSS:SSC-AV-CR:1
nserver: academy.cas.cz (147.231.58.1)
nserver: nsa.ces.net
nserver: visla.utia.cas.cz (147.231.12.1)
tech-c: SB:SSC-AV-CR
tech-c: INDRAMIR
tech-c: VANICEKP
registrar: REG-INTERNET-CZ
created: 01.10.2007 02:00:00
changed: 19.03.2019 12:55:57
keyset: KEY-CASCZ2
dnskey: 257 3 13 +Ox9WihX/mFx82TBELPVgqVnV9SRl1ckoDl0/LFikhajM+Zz5ZPPaV8ZAJpbCEaMaunaVbXJ6vk+JB+dLTso0Q==
tech-c: VANICEKP
registrar: REG-INTERNET-CZ
created: 19.03.2019 11:27:02
cas.cz server information
Servers Location
cas.cz desktop page speed rank
Last tested: 2018-10-09
cas.cz Desktop Speed Test Quick Summary
priority - 20Reduce server response time
In our test, your server responded in 2.2 seconds.
priority - 12Leverage browser caching
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priority - 3Avoid landing page redirects
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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.
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priority - 0Minify CSS
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priority - 0Minify JavaScript
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cas.cz Desktop Resource Breakdown
Total Resources | 57 |
Number of Hosts | 12 |
Static Resources | 34 |
JavaScript Resources | 17 |
CSS Resources | 6 |
cas.cz mobile page speed rank
Last tested: 2018-10-09
cas.cz Mobile Speed Test Quick Summary
priority - 30Reduce server response time
In our test, your server responded in 2.2 seconds.
priority - 18Leverage 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 - 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.
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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.
Optimize CSS Delivery of the following:
priority - 5Optimize images
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priority - 0Minify CSS
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priority - 0Minify HTML
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Minify HTML for the following resources to reduce their size by 2.6KiB (29% reduction).
priority - 0Minify JavaScript
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priority - 0Enable compression
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Enable compression for the following resources to reduce their transfer size by 368B (43% reduction).
cas.cz Mobile Resource Breakdown
Total Resources | 54 |
Number of Hosts | 11 |
Static Resources | 33 |
JavaScript Resources | 16 |
CSS Resources | 6 |
cas.cz mobile page usability
Last tested: 2018-10-09
cas.cz 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.
<a href="mailto:info@cas.cz">info@cas.cz</a>
and 1 others are close to other tap targets.The tap target
<a href="/cs/mapa-stranek/">Mapa stránek</a>
and 1 others are close to other tap targets.cas.cz HTML validation
Errors
Stray end tag “link”.
"...text/css"></link> <link..." Line: 15 Column: 134 - 140
"...text/css"></link> <link..." Line: 16 Column: 131 - 137
"...text/css"></link><link ..."
Duplicate ID “media-video-2”.
"...ner"> <video width="293" height="165" style="width:100%;height:100%;" id="media-video-2" preload="none"> ..."
Duplicate ID “media-video-3”.
"...ner"> <video width="293" height="165" style="width:100%;height:100%;" id="media-video-3" preload="none"> ..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-pro-ceskou-literaturu.png_1002571407.png" width="200" height="100" /></a> ..." Line: 487 Column: 114 - 263
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-pristrojove-techniky.png_1002571407.png" width="200" height="100" /></a> ..." Line: 490 Column: 104 - 244
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/filosoficky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 493 Column: 113 - 262
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-molekularni-genetiky.png_1002571407.png" width="200" height="100" /></a> ..." Line: 496 Column: 127 - 267
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-dejin-umeni.png_1002571407.png" width="200" height="100" /></a> ..." Line: 499 Column: 113 - 254
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/sociologicky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 502 Column: 98 - 236
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/fyzikalni-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 505 Column: 105 - 246
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/astronomicky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 508 Column: 114 - 262
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/archeologicky-ustav-praha.png_1002571407.png" width="200" height="100" /></a> ..." Line: 511 Column: 145 - 277
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/cerge-cei.png_1002571407.png" width="200" height="100" /></a> ..." Line: 514 Column: 129 - 262
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/czechglobe.png_1002571407.png" width="200" height="100" /></a> ..." Line: 517 Column: 96 - 240
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/knihovna-akademie-ved.png_1002571407.png" width="200" height="100" /></a> ..." Line: 520 Column: 105 - 245
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/matematicky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 523 Column: 102 - 240
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/slovansky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 526 Column: 106 - 252
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-analyticke-chemie.png_1002571407.png" width="200" height="100" /></a> ..." Line: 529 Column: 110 - 259
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-fotoniky-elektroniky.png_1002571407.png" width="200" height="100" /></a> ..." Line: 532 Column: 105 - 250
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-fyziky-materialu.png_1002571407.png" width="200" height="100" /></a> ..." Line: 535 Column: 124 - 274
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-makromolekular-chemie.png_1002571407.png" width="200" height="100" /></a> ..." Line: 538 Column: 127 - 272
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-teorie-informace.png_1002571407.png" width="200" height="100" /></a> ..." Line: 541 Column: 110 - 257
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/archeologicky-ustav-brno.png_1002571407.png" width="200" height="100" /></a> ..." Line: 544 Column: 109 - 254
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/biotechnologicky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 547 Column: 105 - 246
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/fyziologicky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 550 Column: 103 - 242
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/historicky-ustav.png_1002571407.png" width="200" height="100" /></a> ..." Line: 553 Column: 111 - 258
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/masarykuv-ustav-a-archiv.png_1002571407.png" width="200" height="100" /></a> ..." Line: 556 Column: 108 - 256
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-biologie-obratlovcu.png_1002571407.png" width="200" height="100" /></a> ..." Line: 559 Column: 116 - 266
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-experimentalni-botani.png_1002571407.png" width="200" height="100" /></a> ..." Line: 562 Column: 157 - 306
"..."_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-fyz-chem-heyrovskeho.png_1002571407.png" width="200" height="100" /></a> ..." Line: 565 Column: 107 - 252
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-fyziky-atmosfery.png_1002571407.png" width="200" height="100" /></a> ..." Line: 568 Column: 106 - 250
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-fyziky-plazmatu.png_1002571407.png" width="200" height="100" /></a> ..." Line: 571 Column: 111 - 251
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-informatiky.png_1002571407.png" width="200" height="100" /></a> ..." Line: 574 Column: 107 - 250
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-jaderne-fyziky.png_1002571407.png" width="200" height="100" /></a> ..." Line: 577 Column: 107 - 249
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-statu-a-prava.png_1002571407.png" width="200" height="100" /></a> ..." Line: 580 Column: 123 - 273
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-struktury-mech-hornin.png_1002571407.png" width="200" height="100" /></a> ..." Line: 583 Column: 125 - 275
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-zivocis-genetiky-fyzi.png_1002571407.png" width="200" height="100" /></a> ..." Line: 586 Column: 110 - 257
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-pro-soudobe-dejiny.png_1002571407.png" width="200" height="100" /></a> ..." Line: 589 Column: 118 - 275
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-organicke-chemie-a-biochemie.png_1002571407.png" width="200" height="100" /></a> ..." Line: 592 Column: 107 - 251
"...="_blank"><img src="/opencms/export/sites/avcr.cz/.content/galerie-obrazku/pracoviste/ustav-pro-jazyk-cesky.png_1002571407.png" width="200" height="100" /></a> ..."
Warnings
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
"... <body> <a name="top"></a> ..."
The first occurrence of ID “media-video-2” was here.
"...ner"> <video width="293" height="165" style="width:100%;height:100%;" id="media-video-2" preload="none"> ..."
The first occurrence of ID “media-video-3” was here.
"...ner"> <video width="293" height="165" style="width:100%;height:100%;" id="media-video-3" preload="none"> ..."
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cas.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.
cas.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.