cesnet.cz Website Information
Daily Unique Visits: 8,541
Daily Page Views: 42,705
Income Per Day: $107
Estimated Value: $64,200
This website is located in Czech Republic and is using following IP address 78.128.211.46. See the complete list of popular websites hosted in Czech Republic.
cesnet.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
Website cesnet.cz is using the following name servers:
- nsa.ces.net
- nsa.ten.cz
- nsa.cesnet.cz
- decsys.vsb.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 cesnet.cz position in Alexa rank database was 18834 and the lowest rank position was 965625. Current position of cesnet.cz in Alexa rank database is 159532.
Desktop speed score of cesnet.cz (50/100) is better than the results of 23.83% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of cesnet.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 cesnet.cz (62/100) is better than the results of 59.44% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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cesnet.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.
cesnet.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: Wed Dec 29 13:48:33 2021
domain: cesnet.cz
registrant: SB:CESNET-ZSPO
admin-c: PV2-RIPE
admin-c: HELMUT_SVERENYAK
nsset: CESNET-ZSPO-3
keyset: AUTO-DKBCR1IXC8VDNKW85PFCL8FPB
registrar: REG-ACTIVE24
registered: 06.10.1996 02:00:00
changed: 17.09.2021 15:42:17
expire: 29.10.2022
contact: SB:CESNET-ZSPO
org: CESNET, z.s.p.o.
name: CESNET, z.s.p.o.
address: Zikova 4
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
contact: PV2-RIPE
name: Pavel Vachek
address: Zikova 4
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 10.08.2001 22:13:00
changed: 07.06.2019 16:26:12
contact: HELMUT_SVERENYAK
name: Helmut Sverenyák
address: Zikova 4
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 09.12.2003 09:20:00
changed: 15.05.2018 21:32:00
nsset: CESNET-ZSPO-3
nserver: nsa.cesnet.cz (195.113.144.228, 2001:718:1:101::144:228)
nserver: nsa.ces.net
nserver: decsys.vsb.cz (158.196.149.9, 2001:718:1001:149::9)
nserver: nsa.ten.cz (81.95.101.67, 2a02:4a8:ac24:115::101:67)
tech-c: SB:CESNET-ZSPO
tech-c: PV2-RIPE
tech-c: PAVEL_KACHA
tech-c: AK2268-RIPE
registrar: REG-ACTIVE24
created: 24.11.2020 16:00:01
changed: 23.11.2021 12:47:18
contact: PAVEL_KACHA
name: Pavel Kacha
address: U Jezírka 873
address: Unhošť
address: 273 51
address: CZ
registrar: REG-WEBGLOBE
created: 10.08.2001 22:13:00
changed: 12.08.2019 14:06:06
contact: AK2268-RIPE
name: Andrea Kropacova
address: CZ
registrar: REG-CZNIC
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
keyset: AUTO-DKBCR1IXC8VDNKW85PFCL8FPB
dnskey: 257 3 13 3n9l6nQdTt5rGlgLZrLfjnqn3YrGPe+ldhJe2BMh53Tx8OXvtvYa9k6eZ24g7ZGE/Nd5zpgOZEotJSRI5uFoqw==
tech-c: CZ-NIC
registrar: REG-CZNIC
created: 06.09.2018 13:10:29
changed: 18.11.2021 15:04:59
contact: CZ-NIC
org: CZ.NIC, z.s.p.o.
name: CZ.NIC, z.s.p.o.
address: Milesovska 1136/5
address: Praha 3
address: 130 00
address: CZ
registrar: REG-CZNIC
created: 17.10.2008 12:08:21
changed: 15.05.2018 21:32:00
%
% 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: Wed Dec 29 13:48:33 2021
domain: cesnet.cz
registrant: SB:CESNET-ZSPO
admin-c: PV2-RIPE
admin-c: HELMUT_SVERENYAK
nsset: CESNET-ZSPO-3
keyset: AUTO-DKBCR1IXC8VDNKW85PFCL8FPB
registrar: REG-ACTIVE24
registered: 06.10.1996 02:00:00
changed: 17.09.2021 15:42:17
expire: 29.10.2022
contact: SB:CESNET-ZSPO
org: CESNET, z.s.p.o.
name: CESNET, z.s.p.o.
address: Zikova 4
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
contact: PV2-RIPE
name: Pavel Vachek
address: Zikova 4
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 10.08.2001 22:13:00
changed: 07.06.2019 16:26:12
contact: HELMUT_SVERENYAK
name: Helmut Sverenyák
address: Zikova 4
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 09.12.2003 09:20:00
changed: 15.05.2018 21:32:00
nsset: CESNET-ZSPO-3
nserver: nsa.cesnet.cz (195.113.144.228, 2001:718:1:101::144:228)
nserver: nsa.ces.net
nserver: decsys.vsb.cz (158.196.149.9, 2001:718:1001:149::9)
nserver: nsa.ten.cz (81.95.101.67, 2a02:4a8:ac24:115::101:67)
tech-c: SB:CESNET-ZSPO
tech-c: PV2-RIPE
tech-c: PAVEL_KACHA
tech-c: AK2268-RIPE
registrar: REG-ACTIVE24
created: 24.11.2020 16:00:01
changed: 23.11.2021 12:47:18
contact: PAVEL_KACHA
name: Pavel Kacha
address: U Jezírka 873
address: Unhošť
address: 273 51
address: CZ
registrar: REG-WEBGLOBE
created: 10.08.2001 22:13:00
changed: 12.08.2019 14:06:06
contact: AK2268-RIPE
name: Andrea Kropacova
address: CZ
registrar: REG-CZNIC
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
keyset: AUTO-DKBCR1IXC8VDNKW85PFCL8FPB
dnskey: 257 3 13 3n9l6nQdTt5rGlgLZrLfjnqn3YrGPe+ldhJe2BMh53Tx8OXvtvYa9k6eZ24g7ZGE/Nd5zpgOZEotJSRI5uFoqw==
tech-c: CZ-NIC
registrar: REG-CZNIC
created: 06.09.2018 13:10:29
changed: 18.11.2021 15:04:59
contact: CZ-NIC
org: CZ.NIC, z.s.p.o.
name: CZ.NIC, z.s.p.o.
address: Milesovska 1136/5
address: Praha 3
address: 130 00
address: CZ
registrar: REG-CZNIC
created: 17.10.2008 12:08:21
changed: 15.05.2018 21:32:00
cesnet.cz server information
Servers Location
cesnet.cz desktop page speed rank
Last tested: 2019-09-03
Desktop Speed
Bad
50/100
cesnet.cz Desktop Speed Test Quick Summary
priority - 44Optimize images
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priority - 18Leverage browser caching
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Leverage browser caching for the following cacheable resources:
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https://www.cesnet.cz/wp-content/themes/cesnet/js/jquery.flexslider-min.js (expiration not specified)
https://www.cesnet.cz/wp-content/themes/cesnet/style.css (expiration not specified)
https://www.cesnet.cz/wp-content/uploads/2017/10/cesnet-logo-inv.svg (expiration not specified)
https://www.cesnet.cz/wp-content/uploads/2018/03/p…ctive-logo-768x399.png (expiration not specified)
https://www.cesnet.cz/wp-content/uploads/2018/08/karusel-czechlight-cs.jpg (expiration not specified)
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priority - 7Minify JavaScript
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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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cesnet.cz Desktop Resource Breakdown
| Total Resources | 53 |
| Number of Hosts | 4 |
| Static Resources | 37 |
| JavaScript Resources | 12 |
| CSS Resources | 7 |
cesnet.cz mobile page speed rank
Last tested: 2017-05-26
Mobile Speed
Bad
62/100
cesnet.cz Mobile Speed Test Quick Summary
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
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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.
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priority - 2Reduce server response time
priority - 0Minify CSS
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cesnet.cz Mobile Resource Breakdown
| Total Resources | 17 |
| Number of Hosts | 2 |
| Static Resources | 3 |
| JavaScript Resources | 8 |
| CSS Resources | 4 |
cesnet.cz mobile page usability
Last tested: 2017-05-26
Mobile Usability
Good
99/100
cesnet.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.
The tap target
<a href="https://www.ce…i-budoucnosti/" class="loop-link tappable clearfix">Kvě 24…ci budoucnosti</a> and 4 others are close to other tap targets.cesnet.cz HTML validation
Errors
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Line: 57 Column: 1 - 71
"...</script> <link rel='https://api.w.org/' href='https://www.cesnet.cz/wp-json/' /> <link..."
"...</script> <link rel='https://api.w.org/' href='https://www.cesnet.cz/wp-json/' /> <link..."
Warnings
The “navigation” role is unnecessary for element “nav”.
Line: 121 Column: 1 - 40
"...go"></a> <nav class="mainmenu" role="navigation"> <ul ..."
"...go"></a> <nav class="mainmenu" role="navigation"> <ul ..."
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Line: 129 Column: 1 - 28
"...></nav> <section class="sitesearch"> <div ..." Line: 117 Column: 1 - 25
"...<header> <section class="mainnav"> <a h..." Line: 148 Column: 1 - 26
"...nnav --> <section class="carousel"> <!-- ..." Line: 175 Column: 1 - 38
"...="main"> <section class="grid grid3 aktuality"> <art..."
"...></nav> <section class="sitesearch"> <div ..." Line: 117 Column: 1 - 25
"...<header> <section class="mainnav"> <a h..." Line: 148 Column: 1 - 26
"...nnav --> <section class="carousel"> <!-- ..." Line: 175 Column: 1 - 38
"...="main"> <section class="grid grid3 aktuality"> <art..."
The “main” role is unnecessary for element “main”.
Line: 173 Column: 1 - 18
"...header> <main role="main"> <sec..."
"...header> <main role="main"> <sec..."
The “contentinfo” role is unnecessary for element “footer”.
Line: 276 Column: 1 - 27
"...</main> <footer role="contentinfo"> <di..."
"...</main> <footer role="contentinfo"> <di..."
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cesnet.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.
cesnet.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.