ctu.cz Website Information
Daily Unique Visits: 9,855
Daily Page Views: 49,275
Income Per Day: $123
Estimated Value: $73,800
ctu.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
No name server records were found.
and is probably hosted by Tlap s.r.o.. See the full list of other websites hosted by Tlap s.r.o..
The highest website ctu.cz position in Alexa rank database was 23179 and the lowest rank position was 992086. Current position of ctu.cz in Alexa rank database is 138252.
Desktop speed score of ctu.cz (66/100) is better than the results of 44.37% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of ctu.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 ctu.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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ctu.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.
ctu.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: Thu Dec 09 16:46:26 2021
domain: ctu.cz
registrant: SB:EB935-RIPE_XX
admin-c: VALPE
nsset: NSS:CONTACTEL:1
keyset: IGN-K-CTUCZ
registrar: REG-IGNUM
registered: 03.02.1998 01:00:00
changed: 08.01.2021 10:43:05
expire: 07.10.2025
contact: SB:EB935-RIPE_XX
org: Cesky telekomunikacni urad
name: Cesky telekomunikacni urad
address: Sokolovská 219, Praha 9, poštovní přihrádka 025
address: Praha 025
address: 225 02
address: CZ
registrar: REG-IGNUM
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
contact: VALPE
org: Český telekomunikační úřad
name: Ing. Pavel Valeš
address: Sokolovská 219
address: Praha
address: 225 00
address: CZ
registrar: REG-IGNUM
created: 16.04.2008 16:42:05
changed: 15.05.2018 21:32:00
nsset: NSS:CONTACTEL:1
nserver: ns2.contactel.cz (193.85.2.116, 2001:af0:2:b::53)
nserver: ns.contactel.cz (193.85.1.116, 2001:af0:2:a::53)
tech-c: SB:CONTACTEL
tech-c: SOKOLD
tech-c: LEBRR
tech-c: RACJ
tech-c: DOLEZALJ
tech-c: PUKVIS-GTS
registrar: REG-IGNUM
created: 01.10.2007 02:00:00
changed: 15.02.2013 15:03:04
contact: SB:CONTACTEL
org: GTS NOVERA a.s.
name: GTS NOVERA a.s.
address: Přemyslovská 2845/43
address: Praha 3
address: 13000
address: CZ
registrar: REG-IGNUM
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
contact: SOKOLD
name: Daniel Sokol
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: LEBRR
name: Radek Lebr
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: RACJ
name: Josef Rác
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: DOLEZALJ
name: Josef Doležal
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: PUKVIS-GTS
org: GTS Czech s.r.o.
name: Ladislav Bukvicka
address: Premyslovska 43
address: Prague
address: 13000
address: CZ
registrar: REG-IGNUM
created: 06.03.2012 16:20:04
changed: 15.05.2018 21:32:00
keyset: IGN-K-CTUCZ
dnskey: 257 3 13 ynVVzgHNWwK1VHGS9PU0iTYfnZmh0ZNCny7UeDQIlsZoyg7r0Wrr4mkTuv3Gk47QFPbRjuGOp2a5NA85VKy2RA==
tech-c: SB:EB935-RIPE_XX
registrar: REG-IGNUM
created: 08.01.2021 10:43:04
%
% 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: Thu Dec 09 16:46:26 2021
domain: ctu.cz
registrant: SB:EB935-RIPE_XX
admin-c: VALPE
nsset: NSS:CONTACTEL:1
keyset: IGN-K-CTUCZ
registrar: REG-IGNUM
registered: 03.02.1998 01:00:00
changed: 08.01.2021 10:43:05
expire: 07.10.2025
contact: SB:EB935-RIPE_XX
org: Cesky telekomunikacni urad
name: Cesky telekomunikacni urad
address: Sokolovská 219, Praha 9, poštovní přihrádka 025
address: Praha 025
address: 225 02
address: CZ
registrar: REG-IGNUM
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
contact: VALPE
org: Český telekomunikační úřad
name: Ing. Pavel Valeš
address: Sokolovská 219
address: Praha
address: 225 00
address: CZ
registrar: REG-IGNUM
created: 16.04.2008 16:42:05
changed: 15.05.2018 21:32:00
nsset: NSS:CONTACTEL:1
nserver: ns2.contactel.cz (193.85.2.116, 2001:af0:2:b::53)
nserver: ns.contactel.cz (193.85.1.116, 2001:af0:2:a::53)
tech-c: SB:CONTACTEL
tech-c: SOKOLD
tech-c: LEBRR
tech-c: RACJ
tech-c: DOLEZALJ
tech-c: PUKVIS-GTS
registrar: REG-IGNUM
created: 01.10.2007 02:00:00
changed: 15.02.2013 15:03:04
contact: SB:CONTACTEL
org: GTS NOVERA a.s.
name: GTS NOVERA a.s.
address: Přemyslovská 2845/43
address: Praha 3
address: 13000
address: CZ
registrar: REG-IGNUM
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
contact: SOKOLD
name: Daniel Sokol
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: LEBRR
name: Radek Lebr
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: RACJ
name: Josef Rác
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: DOLEZALJ
name: Josef Doležal
address: Sokolovská 86
address: Praha 8
address: 186 00
address: CZ
registrar: REG-IGNUM
created: 05.04.2006 18:25:00
changed: 15.05.2018 21:32:00
contact: PUKVIS-GTS
org: GTS Czech s.r.o.
name: Ladislav Bukvicka
address: Premyslovska 43
address: Prague
address: 13000
address: CZ
registrar: REG-IGNUM
created: 06.03.2012 16:20:04
changed: 15.05.2018 21:32:00
keyset: IGN-K-CTUCZ
dnskey: 257 3 13 ynVVzgHNWwK1VHGS9PU0iTYfnZmh0ZNCny7UeDQIlsZoyg7r0Wrr4mkTuv3Gk47QFPbRjuGOp2a5NA85VKy2RA==
tech-c: SB:EB935-RIPE_XX
registrar: REG-IGNUM
created: 08.01.2021 10:43:04
ctu.cz server information
Servers Location
ctu.cz desktop page speed rank
Last tested: 2019-06-23
Desktop Speed
Medium
66/100
ctu.cz Desktop Speed Test Quick Summary
priority - 15Optimize images
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priority - 12Leverage 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.ctu.cz/misc/menu-expanded.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/btn-filtr.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/cd-top-arrow.svg (expiration not specified)
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priority - 9Avoid 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://ctu.cz/
https://ctu.cz/
https://www.ctu.cz/
https://ctu.cz/
https://www.ctu.cz/
priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 37 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://fonts.googleapis.com/css?family=Roboto:500…subset=latin,latin-ext
https://www.ctu.cz/modules/system/system.base.css?pqxgyj
https://www.ctu.cz/modules/system/system.menus.css?pqxgyj
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https://www.ctu.cz/sites/all/modules/nautilus_cont…s/css/views.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/ckeditor.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…/css/ctools.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/lightbox.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…ightbox.min.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/modules/nauti…lus_sitemap.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…tilus_theme.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…ss/ctu_misc.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/modules/nauti…nautilus_ui.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/modules/nauti…tooltip.min.css?pqxgyj
https://www.ctu.cz/modules/locale/locale.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…ver_warning.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…s/user-blue.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…basic-green.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/themes/nautil…ss/nautilus.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/themes/nautilus/css/print.css?pqxgyj
https://www.ctu.cz/modules/system/system.base.css?pqxgyj
https://www.ctu.cz/modules/system/system.menus.css?pqxgyj
https://www.ctu.cz/modules/system/system.messages.css?pqxgyj
https://www.ctu.cz/modules/system/system.theme.css?pqxgyj
https://www.ctu.cz/sites/all/libraries/FooTable/cs…le.core.min.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.core.min.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…i.theme.min.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.menu.min.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…omplete.min.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…app_imports.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…ar_multiday.css?pqxgyj
https://www.ctu.cz/modules/comment/comment.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…on/ctu_cron.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…_custom_vbo.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…te_api/date.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…epicker.1.7.css?pqxgyj
https://www.ctu.cz/modules/field/theme/field.css?pqxgyj
https://www.ctu.cz/modules/node/node.css?pqxgyj
https://www.ctu.cz/modules/search/search.css?pqxgyj
https://www.ctu.cz/modules/user/user.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…s/css/views.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/ckeditor.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…/css/ctools.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/lightbox.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…ightbox.min.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/modules/nauti…lus_sitemap.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…tilus_theme.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…ss/ctu_misc.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/modules/nauti…nautilus_ui.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/modules/nauti…tooltip.min.css?pqxgyj
https://www.ctu.cz/modules/locale/locale.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_feat…ver_warning.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…s/user-blue.css?pqxgyj
https://www.ctu.cz/sites/all/modules/nautilus_cont…basic-green.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/themes/nautil…ss/nautilus.css?pqxgyj
https://www.ctu.cz/profiles/nautilus/themes/nautilus/css/print.css?pqxgyj
priority - 4Reduce server response time
In our test, your server responded in 0.60 seconds.
priority - 2Minify 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 23.1KiB (45% reduction).
Minifying https://www.ctu.cz/sites/all/libraries/FooTable/js/footable.js?v=0.1 could save 3.8KiB (44% reduction) after compression.
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Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…osed_filters.js?pqxgyj could save 2KiB (51% reduction) after compression.
Minifying https://www.ctu.cz/profiles/nautilus/themes/nautilus/js/control.js?pqxgyj could save 1.2KiB (37% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…gleanalytics.js?pqxgyj could save 959B (53% reduction) after compression.
Minifying https://www.ctu.cz/misc/jquery.once.js?v=1.2 could save 816B (76% reduction) after compression.
Minifying https://www.ctu.cz/profiles/nautilus/themes/nautil…ver-dropdown.js?pqxgyj could save 816B (59% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…/app_imports.js?pqxgyj could save 714B (50% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_feat…isc/ctu_misc.js?pqxgyj could save 593B (23% reduction) after compression.
Minifying https://www.ctu.cz/misc/form.js?pqxgyj could save 511B (51% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…rts/ctu_maps.js?pqxgyj could save 493B (30% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_feat…js/saveguard.js?pqxgyj could save 379B (48% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…autocomplete.js?pqxgyj could save 363B (23% reduction) after compression.
Minifying https://www.ctu.cz/misc/collapse.js?pqxgyj could save 361B (31% reduction) after compression.
Minifying https://www.ctu.cz/profiles/nautilus/modules/nauti…/nautilus_ui.js?pqxgyj could save 312B (21% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_feat…u_custom_vbo.js?pqxgyj could save 293B (31% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_feat…magelightbox.js?pqxgyj could save 275B (24% reduction) after compression.
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 4.2KiB (24% reduction).
Minifying https://www.ctu.cz/modules/system/system.base.css?pqxgyj could save 825B (44% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…ar_multiday.css?pqxgyj could save 752B (22% reduction) after compression.
Minifying https://www.ctu.cz/profiles/nautilus/modules/nauti…nautilus_ui.css?pqxgyj could save 529B (23% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…te_api/date.css?pqxgyj could save 341B (29% reduction) after compression.
Minifying https://www.ctu.cz/modules/system/system.theme.css?pqxgyj could save 290B (24% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_feat…tilus_theme.css?pqxgyj could save 192B (11% reduction) after compression.
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Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…basic-green.css?pqxgyj could save 180B (24% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/lightbox.css?pqxgyj could save 172B (14% reduction) after compression.
Minifying https://www.ctu.cz/modules/locale/locale.css?pqxgyj could save 165B (40% reduction) after compression.
Minifying https://www.ctu.cz/modules/user/user.css?pqxgyj could save 162B (24% reduction) after compression.
Minifying https://www.ctu.cz/modules/system/system.menus.css?pqxgyj could save 140B (22% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…epicker.1.7.css?pqxgyj could save 108B (12% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.menu.min.css?pqxgyj could save 104B (24% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…omplete.min.css?pqxgyj could save 102B (56% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.core.min.css?pqxgyj could save 102B (21% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…ar_multiday.css?pqxgyj could save 752B (22% reduction) after compression.
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Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…te_api/date.css?pqxgyj could save 341B (29% reduction) after compression.
Minifying https://www.ctu.cz/modules/system/system.theme.css?pqxgyj could save 290B (24% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_feat…tilus_theme.css?pqxgyj could save 192B (11% reduction) after compression.
Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…s/user-blue.css?pqxgyj could save 181B (24% reduction) after compression.
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Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…epicker.1.7.css?pqxgyj could save 108B (12% reduction) after compression.
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Minifying https://www.ctu.cz/sites/all/modules/nautilus_cont…omplete.min.css?pqxgyj could save 102B (56% reduction) after compression.
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priority - 0Enable 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 170B (31% reduction).
Compressing https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/cd-top-arrow.svg could save 170B (31% reduction).
ctu.cz Desktop Resource Breakdown
| Total Resources | 117 |
| Number of Hosts | 8 |
| Static Resources | 29 |
| JavaScript Resources | 36 |
| CSS Resources | 38 |
ctu.cz mobile page speed rank
Last tested: 2017-05-22
Mobile Speed
Bad
62/100
ctu.cz Mobile Speed Test Quick Summary
priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 36 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://fonts.googleapis.com/css?family=Roboto:500…subset=latin,latin-ext
https://www.ctu.cz/modules/system/system.base.css?opsdjc
https://www.ctu.cz/modules/system/system.menus.css?opsdjc
https://www.ctu.cz/modules/system/system.messages.css?opsdjc
https://www.ctu.cz/modules/system/system.theme.css?opsdjc
https://www.ctu.cz/sites/all/libraries/FooTable/cs…le.core.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.core.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…i.theme.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.menu.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…omplete.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…app_imports.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ar_multiday.css?opsdjc
https://www.ctu.cz/modules/comment/comment.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…on/ctu_cron.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…te_api/date.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…epicker.1.7.css?opsdjc
https://www.ctu.cz/modules/field/theme/field.css?opsdjc
https://www.ctu.cz/modules/node/node.css?opsdjc
https://www.ctu.cz/modules/search/search.css?opsdjc
https://www.ctu.cz/modules/user/user.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…s/css/views.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/ckeditor.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…/css/ctools.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/lightbox.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…ightbox.min.css?opsdjc
https://www.ctu.cz/profiles/nautilus/modules/nauti…lus_sitemap.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…tilus_theme.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…ss/ctu_misc.css?opsdjc
https://www.ctu.cz/profiles/nautilus/modules/nauti…nautilus_ui.css?opsdjc
https://www.ctu.cz/profiles/nautilus/modules/nauti…tooltip.min.css?opsdjc
https://www.ctu.cz/modules/locale/locale.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…ver_warning.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…s/user-blue.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…basic-green.css?opsdjc
https://www.ctu.cz/profiles/nautilus/themes/nautil…ss/nautilus.css?opsdjc
https://www.ctu.cz/profiles/nautilus/themes/nautilus/css/print.css?opsdjc
https://www.ctu.cz/modules/system/system.base.css?opsdjc
https://www.ctu.cz/modules/system/system.menus.css?opsdjc
https://www.ctu.cz/modules/system/system.messages.css?opsdjc
https://www.ctu.cz/modules/system/system.theme.css?opsdjc
https://www.ctu.cz/sites/all/libraries/FooTable/cs…le.core.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.core.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…i.theme.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ui.menu.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…omplete.min.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…app_imports.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ar_multiday.css?opsdjc
https://www.ctu.cz/modules/comment/comment.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…on/ctu_cron.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…te_api/date.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…epicker.1.7.css?opsdjc
https://www.ctu.cz/modules/field/theme/field.css?opsdjc
https://www.ctu.cz/modules/node/node.css?opsdjc
https://www.ctu.cz/modules/search/search.css?opsdjc
https://www.ctu.cz/modules/user/user.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…s/css/views.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/ckeditor.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…/css/ctools.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…ss/lightbox.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…ightbox.min.css?opsdjc
https://www.ctu.cz/profiles/nautilus/modules/nauti…lus_sitemap.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…tilus_theme.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…ss/ctu_misc.css?opsdjc
https://www.ctu.cz/profiles/nautilus/modules/nauti…nautilus_ui.css?opsdjc
https://www.ctu.cz/profiles/nautilus/modules/nauti…tooltip.min.css?opsdjc
https://www.ctu.cz/modules/locale/locale.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_feat…ver_warning.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…s/user-blue.css?opsdjc
https://www.ctu.cz/sites/all/modules/nautilus_cont…basic-green.css?opsdjc
https://www.ctu.cz/profiles/nautilus/themes/nautil…ss/nautilus.css?opsdjc
https://www.ctu.cz/profiles/nautilus/themes/nautilus/css/print.css?opsdjc
priority - 15Leverage 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:
http://www.ctu.cz/profiles/nautilus/themes/nautilus/img/logo-en.png (expiration not specified)
http://www.ctu.cz/profiles/nautilus/themes/nautilus/img/logo-mobile.png (expiration not specified)
http://www.ctu.cz/profiles/nautilus/themes/nautilus/img/logo.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/btn-filtr.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/cd-top-arrow.svg (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/facebook.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautil…g/kontakty-icn-fax.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautil…takty-icn-kontakty.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautil…/kontakty-icn-mail.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautil…akty-icn-podatelna.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautil…g/kontakty-icn-rss.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautil…g/kontakty-icn-tel.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/li.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/lupa.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/pozadi-uvod2.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/twitter.png (expiration not specified)
https://www.ctu.cz/sites/all/modules/nautilus_cont…t_75_ffffff_40x100.png (expiration not specified)
https://www.ctu.cz/sites/default/files/obsah/front…opendata-banner-cz.jpg (expiration not specified)
https://maps.googleapis.com/maps/api/js (30 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
http://www.ctu.cz/profiles/nautilus/themes/nautilus/img/logo-mobile.png (expiration not specified)
http://www.ctu.cz/profiles/nautilus/themes/nautilus/img/logo.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/btn-filtr.png (expiration not specified)
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https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/lupa.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/pozadi-uvod2.png (expiration not specified)
https://www.ctu.cz/profiles/nautilus/themes/nautilus/img/twitter.png (expiration not specified)
https://www.ctu.cz/sites/all/modules/nautilus_cont…t_75_ffffff_40x100.png (expiration not specified)
https://www.ctu.cz/sites/default/files/obsah/front…opendata-banner-cz.jpg (expiration not specified)
https://maps.googleapis.com/maps/api/js (30 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 13Optimize images
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priority - 2Minify JavaScript
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priority - 0Minify CSS
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ctu.cz Mobile Resource Breakdown
| Total Resources | 110 |
| Number of Hosts | 9 |
| Static Resources | 24 |
| JavaScript Resources | 35 |
| CSS Resources | 37 |
ctu.cz mobile page usability
Last tested: 2017-05-22
Mobile Usability
Good
99/100
ctu.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.ct…7ghz-vyhlaseni">Aukce 3,7 GHz</a> and 3 others are close to other tap targets.ctu.cz HTML validation
Errors
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Line: 3 Column: 17 - 55
"...lang="cs"> <head profile="http://www.w3.org/1999/xhtml/vocab"> ..."
"...lang="cs"> <head profile="http://www.w3.org/1999/xhtml/vocab"> ..."
Bad value “X-XRDS-Location” for attribute “http-equiv” on element “meta”.
Line: 6 Column: 1 - 71
"...e/png" /> <meta http-equiv="X-XRDS-Location" content="https://www.ctu.cz/xrds" /> <meta..."
"...e/png" /> <meta http-equiv="X-XRDS-Location" content="https://www.ctu.cz/xrds" /> <meta..."
Bad value “X-Yadis-Location” for attribute “http-equiv” on element “meta”.
Line: 7 Column: 1 - 72
".../xrds" /> <meta http-equiv="X-Yadis-Location" content="https://www.ctu.cz/xrds" /> ..."
".../xrds" /> <meta http-equiv="X-Yadis-Location" content="https://www.ctu.cz/xrds" /> ..."
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Line: 89 Column: 74 - 146
"...t active"><a href="https://www.ctu.cz/" class="language-link active" xml:lang="cs">CZ</a>..." Line: 90 Column: 21 - 86
"..."en last"><a href="https://www.ctu.eu/" class="language-link" xml:lang="en">EN</a>..."
"...t active"><a href="https://www.ctu.cz/" class="language-link active" xml:lang="cs">CZ</a>..." Line: 90 Column: 21 - 86
"..."en last"><a href="https://www.ctu.eu/" class="language-link" xml:lang="en">EN</a>..."
Attribute “about” not allowed on element “div” at this point.
Line: 497 Column: 1 - 158
"...nt"> <div id="node-8169" class="node node-frontpage node-promoted clearfix" about="https://www.ctu.cz/cesky-telekomunikacni-urad" typeof="sioc:Item foaf:Document"> ..."
"...nt"> <div id="node-8169" class="node node-frontpage node-promoted clearfix" about="https://www.ctu.cz/cesky-telekomunikacni-urad" typeof="sioc:Item foaf:Document"> ..."
Bad value “” for attribute “name” on element “input”: Must not be empty.
Line: 711 Column: 7 - 113
"...n"> <input type="submit" id="edit-submit-clanky" name="" value="Filtruj" class="btn btn-primary form-submit" /> </..."
"...n"> <input type="submit" id="edit-submit-clanky" name="" value="Filtruj" class="btn btn-primary form-submit" /> </..."
Attribute “datatype” not allowed on element “span” at this point.
Line: 730 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 735 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 740 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 745 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 750 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 755 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 760 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 765 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 770 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 775 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...."
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 735 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 740 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 745 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 750 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 755 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 760 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 765 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 770 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 775 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...."
Attribute “content” not allowed on element “span” at this point.
Line: 730 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 735 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 740 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 745 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 750 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 755 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 760 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 765 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 770 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 775 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...."
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 735 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 740 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-24T00:00:00+02:00">24. 8...." Line: 745 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 750 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-23T00:00:00+02:00">23. 8...." Line: 755 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 760 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 765 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 770 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...." Line: 775 Column: 91 - 203
"...-content"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2018-08-20T00:00:00+02:00">20. 8...."
The “for” attribute of the “label” element must refer to a non-hidden form control.
Line: 648 Column: 19 - 56
"... <label for="edit-term-node-tid-depth"> ..."
"... <label for="edit-term-node-tid-depth"> ..."
Warnings
The “navigation” role is unnecessary for element “nav”.
Line: 143 Column: 4 - 56
"...mary"> <nav class="navbar navbar-default" role="navigation"> <..."
"...mary"> <nav class="navbar navbar-default" role="navigation"> <..."
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ctu.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.
ctu.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.