csa.cz Website Information
Daily Unique Visits: 62,258
Daily Page Views: 373,548
Income Per Day: $747
Estimated Value: $537,840
csa.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 CLOUDFLARENET - Cloudflare, Inc., US. See the full list of other websites hosted by CLOUDFLARENET - Cloudflare, Inc., US.
The highest website csa.cz position in Alexa rank database was 11532 and the lowest rank position was 967365. Current position of csa.cz in Alexa rank database is 23037.
Desktop speed score of csa.cz (47/100) is better than the results of 20.85% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of csa.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 csa.cz (15/100) is better than the results of 2.77% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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csa.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.
csa.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: 3.15.0
% Timestamp: Wed Sep 18 03:24:42 2024
domain: csa.cz
registrant: CSA
admin-c: CSA
nsset: CLOUDFLARENSSET1
keyset: AUTO-XHHBU108NABHMTKPGXI9M7RWM
registrar: REG-ACTIVE24
registered: 08.08.1996 02:00:00
changed: 21.03.2024 16:30:25
expire: 27.10.2024
contact: CSA
org: České aerolinie a.s.
name: České aerolinie
address: Evropská 846/176a
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 02.10.2015 08:39:36
changed: 15.05.2018 21:32:00
nsset: CLOUDFLARENSSET1
nserver: katelyn.ns.cloudflare.com
nserver: pedro.ns.cloudflare.com
tech-c: A24CONTACT-99814
registrar: REG-ACTIVE24
created: 13.03.2024 10:38:25
contact: A24CONTACT-99814
org: České aerolinie a.s.
name: České aerolinie a.s.
address: Evropská 846/176a
address: Praha 6 Vokovice
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 06.09.2016 10:19:27
changed: 25.04.2022 11:31:09
keyset: AUTO-XHHBU108NABHMTKPGXI9M7RWM
dnskey: 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
tech-c: CZ-NIC
registrar: REG-CZNIC
created: 21.03.2024 16:30:25
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: 3.15.0
% Timestamp: Wed Sep 18 03:24:42 2024
domain: csa.cz
registrant: CSA
admin-c: CSA
nsset: CLOUDFLARENSSET1
keyset: AUTO-XHHBU108NABHMTKPGXI9M7RWM
registrar: REG-ACTIVE24
registered: 08.08.1996 02:00:00
changed: 21.03.2024 16:30:25
expire: 27.10.2024
contact: CSA
org: České aerolinie a.s.
name: České aerolinie
address: Evropská 846/176a
address: Praha 6
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 02.10.2015 08:39:36
changed: 15.05.2018 21:32:00
nsset: CLOUDFLARENSSET1
nserver: katelyn.ns.cloudflare.com
nserver: pedro.ns.cloudflare.com
tech-c: A24CONTACT-99814
registrar: REG-ACTIVE24
created: 13.03.2024 10:38:25
contact: A24CONTACT-99814
org: České aerolinie a.s.
name: České aerolinie a.s.
address: Evropská 846/176a
address: Praha 6 Vokovice
address: 160 00
address: CZ
registrar: REG-ACTIVE24
created: 06.09.2016 10:19:27
changed: 25.04.2022 11:31:09
keyset: AUTO-XHHBU108NABHMTKPGXI9M7RWM
dnskey: 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
tech-c: CZ-NIC
registrar: REG-CZNIC
created: 21.03.2024 16:30:25
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
csa.cz server information
Servers Location
csa.cz desktop page speed rank
Last tested: 2016-10-09
Desktop Speed
Bad
47/100
csa.cz Desktop Speed Test Quick Summary
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priority - 27Leverage browser caching
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http://www.csa.cz/img/icon_usnav_parking.png (expiration not specified)
http://www.csa.cz/img/list-one.png (expiration not specified)
http://www.csa.cz/img/logo_csa_2014.png (expiration not specified)
http://www.csa.cz/img/logo_skyteam_2014.png (expiration not specified)
http://www.csa.cz/img/opacity06bck.png (expiration not specified)
http://www.csa.cz/img/opacityX.png (expiration not specified)
http://www.csa.cz/img/search.png (expiration not specified)
http://www.csa.cz/pic/cz_homepage/13_04_Bannery_Aeroparking_300x16.png (expiration not specified)
http://www.csa.cz/pic/cz_homepage/300x160_HP_CZ.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/bey_cz.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/booking_com_okplus_servis_300x16.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/car_300x160_cz.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/cz_bio_cz.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/cz_pek_cz.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/doplnkovy_hp_bann_cz_opraveno2.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/new_servis_A330_300x160.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/new_servis_B2B_300x160.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/new_servis_Railnfly_300x160_cz.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/new_servis_skyshop_300x160.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/service_mobile.jpg (expiration not specified)
http://www.csa.cz/pic/cz_homepage/servis_tipy_new.jpg (expiration not specified)
http://atemda.com/UserMatch.ashx?bidderid=13&bidderuid=14331761479956996495 (1 second)
http://www.googletagmanager.com/gtm.js?id=GTM-SPVD (15 minutes)
http://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 15Minify 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 145.6KiB (48% reduction).
Minifying http://www.csa.cz/cs/scr/js_validationEngine.js?ver=6322 could save 28.3KiB (47% reduction).
Minifying http://www.csa.cz/scr/js_jquery_scrollpanel_csa.js?ver=6322 could save 22.1KiB (48% reduction).
Minifying http://www.csa.cz/scr/js_jquery_bxSlider.js?ver=6322 could save 21.9KiB (50% reduction).
Minifying http://www.csa.cz/scr/aag_forms_2012.js?ver=6322 could save 14KiB (54% reduction).
Minifying http://www.csa.cz/cs/scr/redesign_airportlist_2012.js?ver=6322 could save 12.3KiB (42% reduction).
Minifying http://www.csa.cz/cs/scr/js_function_csa.js?ver=6322 could save 9.1KiB (50% reduction).
Minifying http://www.csa.cz/cs/scr/section_2012.js?ver=6322 could save 7.7KiB (47% reduction).
Minifying http://www.csa.cz/cs/scr/redesign_calendar_2012.js?ver=6322 could save 6.3KiB (49% reduction).
Minifying http://www.csa.cz/cs/scr/sec_homepage2014.js?ver=6322 could save 6.2KiB (50% reduction).
Minifying http://www.csa.cz/cs/scr/booking_mask_2014_portal.js?ver=6322 could save 5.7KiB (37% reduction).
Minifying http://www.csa.cz/cs/scr/js_validationEngine_languages.js?ver=6322 could save 5.6KiB (47% reduction).
Minifying http://www.csa.cz/scr/js_jquery_placeholding.js?ver=6322 could save 1.8KiB (53% reduction).
Minifying http://www.csa.cz/scr/crisis.js?ver=6322 could save 1.6KiB (46% reduction).
Minifying http://www.csa.cz/cs/scr/ici_forms_2012.js?ver=6322 could save 1.3KiB (51% reduction).
Minifying http://www.csa.cz/scr/js_jquery_mousewheel_csa.js?ver=6322 could save 1.1KiB (47% reduction).
Minifying http://www.csa.cz/scr/js_cookies.js?ver=6322 could save 576B (25% reduction).
Minifying http://www.csa.cz/scr/js_jquery_scrollpanel_csa.js?ver=6322 could save 22.1KiB (48% reduction).
Minifying http://www.csa.cz/scr/js_jquery_bxSlider.js?ver=6322 could save 21.9KiB (50% reduction).
Minifying http://www.csa.cz/scr/aag_forms_2012.js?ver=6322 could save 14KiB (54% reduction).
Minifying http://www.csa.cz/cs/scr/redesign_airportlist_2012.js?ver=6322 could save 12.3KiB (42% reduction).
Minifying http://www.csa.cz/cs/scr/js_function_csa.js?ver=6322 could save 9.1KiB (50% reduction).
Minifying http://www.csa.cz/cs/scr/section_2012.js?ver=6322 could save 7.7KiB (47% reduction).
Minifying http://www.csa.cz/cs/scr/redesign_calendar_2012.js?ver=6322 could save 6.3KiB (49% reduction).
Minifying http://www.csa.cz/cs/scr/sec_homepage2014.js?ver=6322 could save 6.2KiB (50% reduction).
Minifying http://www.csa.cz/cs/scr/booking_mask_2014_portal.js?ver=6322 could save 5.7KiB (37% reduction).
Minifying http://www.csa.cz/cs/scr/js_validationEngine_languages.js?ver=6322 could save 5.6KiB (47% reduction).
Minifying http://www.csa.cz/scr/js_jquery_placeholding.js?ver=6322 could save 1.8KiB (53% reduction).
Minifying http://www.csa.cz/scr/crisis.js?ver=6322 could save 1.6KiB (46% reduction).
Minifying http://www.csa.cz/cs/scr/ici_forms_2012.js?ver=6322 could save 1.3KiB (51% reduction).
Minifying http://www.csa.cz/scr/js_jquery_mousewheel_csa.js?ver=6322 could save 1.1KiB (47% reduction).
Minifying http://www.csa.cz/scr/js_cookies.js?ver=6322 could save 576B (25% reduction).
priority - 12Avoid landing page redirects
Your page has 5 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://csa.cz/
http://www.csa.cz/
http://www.csa.cz/worldwide/csa_worldwide/worldwide_czechia.htm
http://www.csa.cz/portal/homepage.htm?userSection=cz&userLanguage=cs
http://www.csa.cz/en/portal/homepage.htm?userSection=cz&userLanguage=cs
http://www.csa.cz/cs/portal/homepage/cz_homepage.htm
http://www.csa.cz/
http://www.csa.cz/worldwide/csa_worldwide/worldwide_czechia.htm
http://www.csa.cz/portal/homepage.htm?userSection=cz&userLanguage=cs
http://www.csa.cz/en/portal/homepage.htm?userSection=cz&userLanguage=cs
http://www.csa.cz/cs/portal/homepage/cz_homepage.htm
priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 30 blocking script resources and 15 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://www.csa.cz/scr/js_html5shiv.js?ver=6322
http://www.csa.cz/scr/js_cookies.js?ver=6322
http://www.csa.cz/scr/js_selectivizr.js?ver=6322
http://www.csa.cz/scr/js_jquery_1_7.js?ver=6322
http://www.csa.cz/cs/scr/web_cookies_information_top.js?ver=6322
http://www.csa.cz/cs/scr/header_csa_2014.js?ver=6322
http://www.csa.cz/cs/scr/new_csa_ve_svete.js?ver=6322
http://www.csa.cz/scr/js_jquery_bxSlider.js?ver=6322
http://www.csa.cz/scr/js_jquery_placeholding.js?ver=6322
http://www.csa.cz/scr/siteCatalystTracker.js?ver=6322
http://www.csa.cz/scr/js_jquery_scrollpanel_csa.js?ver=6322
http://www.csa.cz/scr/js_jquery_mousewheel_csa.js?ver=6322
http://www.csa.cz/cs/scr/js_function_csa.js?ver=6322
http://www.csa.cz/scr/crisis.js?ver=6322
http://www.csa.cz/cs/scr/new_php_getzastoupeni.js?ver=6322
http://www.csa.cz/scr/aag_forms_2012.js?ver=6322
http://www.csa.cz/cs/scr/section_2012.js?ver=6322
http://www.csa.cz/cs/scr/booking_mask_2014_portal.js?ver=6322
http://www.csa.cz/scr/js_jquery_ui_part1.js?ver=6322
http://www.csa.cz/scr/js_jquery_ui_part2.js?ver=6322
http://www.csa.cz/scr/js_jquery_ui_part3.js?ver=6322
http://www.csa.cz/scr/js_jquery_backgroundpos.js?ver=6322
http://www.csa.cz/cs/scr/ici_forms_2012.js?ver=6322
http://www.csa.cz/scr/swfobject2.js?ver=6322
http://www.csa.cz/cs/scr/redesign_calendar_2012.js?ver=6322
http://www.csa.cz/cs/scr/redesign_airportlist_2012.js?ver=6322
http://www.csa.cz/cs/scr/js_validationEngine_languages.js?ver=6322
http://www.csa.cz/cs/scr/js_validationEngine.js?ver=6322
http://www.csa.cz/cs/scr/sec_homepage2014.js?ver=6322
http://assets.adobedtm.com/bd9b7570ee863611aa0d4c6…b31d180ccbda9821959.js
http://www.csa.cz/scr/js_cookies.js?ver=6322
http://www.csa.cz/scr/js_selectivizr.js?ver=6322
http://www.csa.cz/scr/js_jquery_1_7.js?ver=6322
http://www.csa.cz/cs/scr/web_cookies_information_top.js?ver=6322
http://www.csa.cz/cs/scr/header_csa_2014.js?ver=6322
http://www.csa.cz/cs/scr/new_csa_ve_svete.js?ver=6322
http://www.csa.cz/scr/js_jquery_bxSlider.js?ver=6322
http://www.csa.cz/scr/js_jquery_placeholding.js?ver=6322
http://www.csa.cz/scr/siteCatalystTracker.js?ver=6322
http://www.csa.cz/scr/js_jquery_scrollpanel_csa.js?ver=6322
http://www.csa.cz/scr/js_jquery_mousewheel_csa.js?ver=6322
http://www.csa.cz/cs/scr/js_function_csa.js?ver=6322
http://www.csa.cz/scr/crisis.js?ver=6322
http://www.csa.cz/cs/scr/new_php_getzastoupeni.js?ver=6322
http://www.csa.cz/scr/aag_forms_2012.js?ver=6322
http://www.csa.cz/cs/scr/section_2012.js?ver=6322
http://www.csa.cz/cs/scr/booking_mask_2014_portal.js?ver=6322
http://www.csa.cz/scr/js_jquery_ui_part1.js?ver=6322
http://www.csa.cz/scr/js_jquery_ui_part2.js?ver=6322
http://www.csa.cz/scr/js_jquery_ui_part3.js?ver=6322
http://www.csa.cz/scr/js_jquery_backgroundpos.js?ver=6322
http://www.csa.cz/cs/scr/ici_forms_2012.js?ver=6322
http://www.csa.cz/scr/swfobject2.js?ver=6322
http://www.csa.cz/cs/scr/redesign_calendar_2012.js?ver=6322
http://www.csa.cz/cs/scr/redesign_airportlist_2012.js?ver=6322
http://www.csa.cz/cs/scr/js_validationEngine_languages.js?ver=6322
http://www.csa.cz/cs/scr/js_validationEngine.js?ver=6322
http://www.csa.cz/cs/scr/sec_homepage2014.js?ver=6322
http://assets.adobedtm.com/bd9b7570ee863611aa0d4c6…b31d180ccbda9821959.js
Optimize CSS Delivery of the following:
http://www.csa.cz/css/web_cookies_information_top_1.css?ver=6322
http://www.csa.cz/css/new_csa_ve_svete.css?ver=6322
http://www.csa.cz/css/js_jquery_bxslider.css?ver=6322
http://www.csa.cz/css/footer_csa_1.css?ver=6322
http://www.csa.cz/css/js_jquery_scrollpanel_csa_1.css?ver=6322
http://www.csa.cz/css/js_function_csa_1.css?ver=6322
http://www.csa.cz/css/aag_forms_2012.css?ver=6322
http://www.csa.cz/css/main_csa.css?ver=6322
http://www.csa.cz/css/booking_mask_2014_portal_1.css?ver=6322
http://www.csa.cz/css/ici_forms_2012_1.css?ver=6322
http://www.csa.cz/css/redesign_calendar_2012_1.css?ver=6322
http://www.csa.cz/css/redesign_airportlist_2012_1.css?ver=6322
http://www.csa.cz/css/js_validationengine_2.css?ver=6322
http://www.csa.cz/css/sec_homepage2014_1.css?ver=6322
http://www.csa.cz/css/editor_styles_csar012.css?ver=6322
http://www.csa.cz/css/new_csa_ve_svete.css?ver=6322
http://www.csa.cz/css/js_jquery_bxslider.css?ver=6322
http://www.csa.cz/css/footer_csa_1.css?ver=6322
http://www.csa.cz/css/js_jquery_scrollpanel_csa_1.css?ver=6322
http://www.csa.cz/css/js_function_csa_1.css?ver=6322
http://www.csa.cz/css/aag_forms_2012.css?ver=6322
http://www.csa.cz/css/main_csa.css?ver=6322
http://www.csa.cz/css/booking_mask_2014_portal_1.css?ver=6322
http://www.csa.cz/css/ici_forms_2012_1.css?ver=6322
http://www.csa.cz/css/redesign_calendar_2012_1.css?ver=6322
http://www.csa.cz/css/redesign_airportlist_2012_1.css?ver=6322
http://www.csa.cz/css/js_validationengine_2.css?ver=6322
http://www.csa.cz/css/sec_homepage2014_1.css?ver=6322
http://www.csa.cz/css/editor_styles_csar012.css?ver=6322
priority - 4Minify 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 34.3KiB (24% reduction).
Minifying http://www.csa.cz/css/screen.main_csa.css?ver=6322 could save 18.9KiB (26% reduction).
Minifying http://www.csa.cz/css/sec_homepage2014_1.css?ver=6322 could save 5.2KiB (25% reduction).
Minifying http://www.csa.cz/css/aag_forms_2012.css?ver=6322 could save 2.6KiB (13% reduction).
Minifying http://www.csa.cz/css/edit.editor_styles_csar012.css?ver=6322 could save 1.8KiB (37% reduction).
Minifying http://www.csa.cz/css/redesign_airportlist_2012_1.css?ver=6322 could save 1.5KiB (38% reduction).
Minifying http://www.csa.cz/css/js_function_csa_1.css?ver=6322 could save 1.5KiB (18% reduction).
Minifying http://www.csa.cz/css/js_jquery_bxslider.css?ver=6322 could save 1.1KiB (36% reduction).
Minifying http://www.csa.cz/css/ici_forms_2012_1.css?ver=6322 could save 618B (27% reduction).
Minifying http://www.csa.cz/css/js_jquery_scrollpanel_csa_1.css?ver=6322 could save 617B (40% reduction).
Minifying http://www.csa.cz/css/redesign_calendar_2012_1.css?ver=6322 could save 539B (22% reduction).
Minifying http://www.csa.cz/css/sec_homepage2014_1.css?ver=6322 could save 5.2KiB (25% reduction).
Minifying http://www.csa.cz/css/aag_forms_2012.css?ver=6322 could save 2.6KiB (13% reduction).
Minifying http://www.csa.cz/css/edit.editor_styles_csar012.css?ver=6322 could save 1.8KiB (37% reduction).
Minifying http://www.csa.cz/css/redesign_airportlist_2012_1.css?ver=6322 could save 1.5KiB (38% reduction).
Minifying http://www.csa.cz/css/js_function_csa_1.css?ver=6322 could save 1.5KiB (18% reduction).
Minifying http://www.csa.cz/css/js_jquery_bxslider.css?ver=6322 could save 1.1KiB (36% reduction).
Minifying http://www.csa.cz/css/ici_forms_2012_1.css?ver=6322 could save 618B (27% reduction).
Minifying http://www.csa.cz/css/js_jquery_scrollpanel_csa_1.css?ver=6322 could save 617B (40% reduction).
Minifying http://www.csa.cz/css/redesign_calendar_2012_1.css?ver=6322 could save 539B (22% reduction).
priority - 1Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 5.5KiB (48% reduction).
Compressing http://www.csa.cz/img/bx-arrows2014.png could save 3.1KiB (65% reduction).
Compressing http://www.csa.cz/img/footer.gif could save 1.6KiB (36% reduction).
Compressing http://www.csa.cz/img/bx-arrows2014grey.png could save 735B (34% reduction).
Compressing http://www.csa.cz/img/footer.gif could save 1.6KiB (36% reduction).
Compressing http://www.csa.cz/img/bx-arrows2014grey.png could save 735B (34% reduction).
csa.cz Desktop Resource Breakdown
| Total Resources | 185 |
| Number of Hosts | 54 |
| Static Resources | 58 |
| JavaScript Resources | 43 |
| CSS Resources | 15 |
csa.cz mobile page speed rank
Last tested: 2018-01-15
Mobile Speed
Bad
15/100
csa.cz Mobile Speed Test Quick Summary
priority - 343Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 3.3MiB (87% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/b/b/9/b/9…bb9bf5a5292c6e3e44.jpg could save 930.4KiB (90% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/9/4/3/f/5…6ffbc46006b4a48436.jpg could save 927.3KiB (90% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/d/f/9/c/d…025cb31f532ab35fff.jpg could save 833.4KiB (81% reduction).
Compressing https://www.csa.cz/media/1067/booking-form-bg.jpg could save 140.2KiB (67% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/7/b/7/b/2…3afccfaae6a1469f4d.png could save 127.7KiB (99% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/a/d/a/a/d…d98baa1df40eaa68f3.png could save 127.5KiB (99% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/1/5/a/7/d…dca7f472f16e001337.png could save 127.3KiB (99% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/3/6/b/1/a…060aac0b1cda795a1b.png could save 120.6KiB (94% reduction).
Compressing https://www.csa.cz/media/1594/booking-form-bg-pattern.jpg could save 12.8KiB (85% reduction).
Compressing https://www.csa.cz/media/1059/plane-tail-footer.jpg could save 2.2KiB (66% reduction).
Compressing https://www.csa.cz/media/1062/footer-delimiter.jpg could save 1.2KiB (66% reduction).
Compressing https://www.csa.cz/media/1114/footer-menu-arrow-off-2x.png could save 1KiB (71% reduction).
Compressing https://www.csa.cz/media/1088/top-info-close-blue-2x.png could save 388B (35% reduction).
Compressing https://www.csa.cz/media/1111/m_nav-burger-2x.png could save 134B (32% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/9/4/3/f/5…6ffbc46006b4a48436.jpg could save 927.3KiB (90% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/d/f/9/c/d…025cb31f532ab35fff.jpg could save 833.4KiB (81% reduction).
Compressing https://www.csa.cz/media/1067/booking-form-bg.jpg could save 140.2KiB (67% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/7/b/7/b/2…3afccfaae6a1469f4d.png could save 127.7KiB (99% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/a/d/a/a/d…d98baa1df40eaa68f3.png could save 127.5KiB (99% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/1/5/a/7/d…dca7f472f16e001337.png could save 127.3KiB (99% reduction).
Compressing https://csaupcdnep01.azureedge.net/cache/3/6/b/1/a…060aac0b1cda795a1b.png could save 120.6KiB (94% reduction).
Compressing https://www.csa.cz/media/1594/booking-form-bg-pattern.jpg could save 12.8KiB (85% reduction).
Compressing https://www.csa.cz/media/1059/plane-tail-footer.jpg could save 2.2KiB (66% reduction).
Compressing https://www.csa.cz/media/1062/footer-delimiter.jpg could save 1.2KiB (66% reduction).
Compressing https://www.csa.cz/media/1114/footer-menu-arrow-off-2x.png could save 1KiB (71% reduction).
Compressing https://www.csa.cz/media/1088/top-info-close-blue-2x.png could save 388B (35% reduction).
Compressing https://www.csa.cz/media/1111/m_nav-burger-2x.png could save 134B (32% reduction).
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 11 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://assets.adobedtm.com/bd9b7570ee863611aa0d4c…b31d180ccbda9821959.js
https://www.csa.cz/scripts/modernizr-custom.js?sv=8
https://www.csa.cz/scripts/libs.js?sv=8
https://www.csa.cz/scripts/main.js?sv=8
https://www.csa.cz/scripts/forms.js?sv=8
https://www.csa.cz/scripts/vue.min.js?sv=8
https://www.csa.cz/scripts/flatpickr/l10n/cs.js?sv=8
https://www.csa.cz/scripts/helpers/destinationstorage.js?v=3
https://www.csa.cz/scripts/booking_form.js?v=3
https://www.csa.cz/scripts/jquery.matchHeight-min.js
https://www.google.com/recaptcha/api.js?onload=initCaptcha&render=explicit
https://www.csa.cz/scripts/modernizr-custom.js?sv=8
https://www.csa.cz/scripts/libs.js?sv=8
https://www.csa.cz/scripts/main.js?sv=8
https://www.csa.cz/scripts/forms.js?sv=8
https://www.csa.cz/scripts/vue.min.js?sv=8
https://www.csa.cz/scripts/flatpickr/l10n/cs.js?sv=8
https://www.csa.cz/scripts/helpers/destinationstorage.js?v=3
https://www.csa.cz/scripts/booking_form.js?v=3
https://www.csa.cz/scripts/jquery.matchHeight-min.js
https://www.google.com/recaptcha/api.js?onload=initCaptcha&render=explicit
Optimize CSS Delivery of the following:
https://www.csa.cz/css/bootstrap.min.css?sv=8
https://www.csa.cz/css/main.css?sv=8
https://www.csa.cz/css/main.css?sv=8
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.
Leverage browser caching for the following cacheable resources:
https://assets.adobedtm.com/bd9b7570ee863611aa0d4c…3075f37b82d397a8bad.js (expiration not specified)
https://assets.adobedtm.com/bd9b7570ee863611aa0d4c…b31d180ccbda9821959.js (expiration not specified)
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https://dc.services.visualstudio.com/v2/track (expiration not specified)
https://www.csa.cz/fonts/Roboto-Light.ttf (expiration not specified)
https://www.csa.cz/fonts/Roboto-Medium.ttf (expiration not specified)
https://www.csa.cz/fonts/Roboto-Regular.ttf (expiration not specified)
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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.
http://csa.cz/
https://www.csa.cz/
https://www.csa.cz/cz-cs/
https://www.csa.cz/
https://www.csa.cz/cz-cs/
priority - 8Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 49% of the final above-the-fold content could be rendered with the full HTML response.
priority - 2Enable 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 20KiB (88% reduction).
Compressing https://www.csa.cz/Umbraco/Api/DestinationCache/Ge…stinations_language=cs could save 20KiB (88% 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 5.3KiB (16% reduction).
Minifying https://www.csa.cz/Umbraco/Api/DestinationCache/Ge…stinations_language=cs could save 4.2KiB (19% reduction).
Minifying https://www.csa.cz/cz-cs/ could save 1.1KiB (11% reduction) after compression.
Minifying https://www.csa.cz/cz-cs/ could save 1.1KiB (11% reduction) after compression.
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 3.4KiB (29% reduction).
Minifying https://www.csa.cz/scripts/main.js?sv=8 could save 1.4KiB (27% reduction) after compression.
Minifying https://www.csa.cz/scripts/booking_form.js?v=3 could save 838B (24% reduction) after compression.
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Minifying https://www.csa.cz/scripts/booking_form.js?v=3 could save 838B (24% reduction) after compression.
Minifying https://connect.facebook.net/signals/plugins/iwl.js?v=2.8.6 could save 645B (86% reduction) after compression.
Minifying https://www.csa.cz/scripts/forms.js?sv=8 could save 305B (22% reduction) after compression.
Minifying https://www.csa.cz/scripts/helpers/destinationstorage.js?v=3 could save 291B (27% 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 499B (13% reduction).
Minifying https://www.csa.cz/css/bootstrap.min.css?sv=8 could save 499B (13% reduction) after compression.
csa.cz Mobile Resource Breakdown
| Total Resources | 60 |
| Number of Hosts | 20 |
| Static Resources | 35 |
| JavaScript Resources | 28 |
| CSS Resources | 2 |
csa.cz mobile page usability
Last tested: 2018-01-15
Mobile Usability
Good
100/100
csa.cz HTML validation
Warnings
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Line: 970 Column: 27 - 124
"...<noscript><img src="https://sstats.csa.cz/b/ss/csabasic/1/G.1--NS/0" height="1" width="1" border="0" alt=""></nosc..."
"...<noscript><img src="https://sstats.csa.cz/b/ss/csabasic/1/G.1--NS/0" height="1" width="1" border="0" alt=""></nosc..."
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Line: 636 Column: 9 - 41
"...> <h1 class="special-offers-title">Speci&..."
"...> <h1 class="special-offers-title">Speci&..."
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csa.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.
csa.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.