web4u.cz Website Information
Daily Unique Visits: 6,166
Daily Page Views: 24,664
Income Per Day: $69
Estimated Value: $37,260
This website is located in Czech Republic and is using following IP address 81.91.86.19. See the complete list of popular websites hosted in Czech Republic.
web4u.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
Website web4u.cz is using the following name servers:
- ns.web4u.cz
- ns2.web4u.cz
and is probably hosted by Web4U s.r.o.. See the full list of other websites hosted by Web4U s.r.o..
The highest website web4u.cz position in Alexa rank database was 25361 and the lowest rank position was 992567. Current position of web4u.cz in Alexa rank database is 203528.
Desktop speed score of web4u.cz (59/100) is better than the results of 34.36% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of web4u.cz is unknown.
Mobile speed of web4u.cz is unknown.
Advertisement
web4u.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.
web4u.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.
Your connection limit exceeded. Please slow down and try again later.
web4u.cz server information
Servers Location
web4u.cz desktop page speed rank
Last tested: 2017-12-17
Desktop Speed
Bad
59/100
web4u.cz Desktop Speed Test Quick Summary
priority - 51Leverage 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://chat.web4u.cz/css/bootstrap.css (expiration not specified)
https://chat.web4u.cz/css/font-awesome.min.css (expiration not specified)
https://chat.web4u.cz/css/fonts.css (expiration not specified)
https://chat.web4u.cz/css/jquery.mCustomScrollbar.css (expiration not specified)
https://chat.web4u.cz/css/main.css (expiration not specified)
https://chat.web4u.cz/css/widget-mobile.css (expiration not specified)
https://chat.web4u.cz/fonts/open-sans-v13-cyrillic…cyrillic-ext-600.woff2 (expiration not specified)
https://chat.web4u.cz/fonts/open-sans-v13-cyrillic…llic-ext-regular.woff2 (expiration not specified)
https://chat.web4u.cz/img/glyphicons-halflings-white.png (expiration not specified)
https://chat.web4u.cz/img/loading.gif (expiration not specified)
https://chat.web4u.cz/img/redesign/attention-grabber-arrow.png (expiration not specified)
https://chat.web4u.cz/img/redesign/bg-widget-header-bar.png (expiration not specified)
https://chat.web4u.cz/img/redesign/icon-widget-mail.png (expiration not specified)
https://chat.web4u.cz/img/redesign/logo-widget-link.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Balloon.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Big-Grin.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Cool.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Crying.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Devil.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Goodbye.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Kiss.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Love.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Sad.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Scared.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Silly.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Straight-Face.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Tongue.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Winking.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/smile.png (expiration not specified)
https://chat.web4u.cz/js/customer-chat-attention-grabber.min.js (expiration not specified)
https://chat.web4u.cz/js/customer-chat-widget-libs.min.js (expiration not specified)
https://chat.web4u.cz/js/customer-chat-widget.min.js (expiration not specified)
https://chat.web4u.cz/js/lib/error-tracking.js (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…blackcond-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…o-blackit-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…dpro-bold-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…dpro-cond-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…pro-light-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…lightcond-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…o-lightit-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…ro-normal-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…emiboldit-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/CallMe_bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/bullet-green.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/bullet-yellow.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…kovany-registrator.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…ntact-form-info-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…n-accordion-closed.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/domain-check-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…ain-check-input-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…in-check-submit-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/false.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…tLogin_mojeID_icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/fb-icon-dark.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab3_1.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab3_2.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab3_3.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab4-info.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab5-info.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…-webhosting-label1.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…-webhosting-label2.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-content-bg.jpg (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-header-bg.jpg (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-spolehlivost.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-test.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-test2.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-top.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hptabactive.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hptabpasiv.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/kontakt-form-check.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/lab-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/login-form-submit.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/CCK.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/FENIX_CZ.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/KindredGroup.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/Kosmas.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/MUP.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/Zasilkovna.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/facebook.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/google_plus.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/linkedin.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/twitter.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/servers-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/speach-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/speed-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/tarif-price-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/true.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/w4u-logo.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/js/fast-login-form.js (expiration not specified)
https://www.web4u.cz/static/presentation2014/js/jquery-ui.min.js (expiration not specified)
https://www.web4u.cz/z_graphics/order/ajaxLoader.gif (expiration not specified)
https://www.web4u.cz/z_graphics/shade1x1.png (expiration not specified)
https://www.web4u.cz/z_js/loading-process-whois-whisperer-integration.js (expiration not specified)
https://static.hotjar.com/c/hotjar-225344.js?sv=5 (60 seconds)
https://www.google.com/recaptcha/api.js?hl=cs (5 minutes)
https://www.google.com/recaptcha/api2/webworker.js?hl=cs&v=r20171212152908 (5 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-WXQR3H (15 minutes)
https://connect.facebook.net/en_US/fbds.js (20 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/165193…49010?v=2.8.6&r=stable (20 minutes)
https://www.google-analytics.com/plugins/ua/ec.js (60 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://chat.web4u.cz/css/font-awesome.min.css (expiration not specified)
https://chat.web4u.cz/css/fonts.css (expiration not specified)
https://chat.web4u.cz/css/jquery.mCustomScrollbar.css (expiration not specified)
https://chat.web4u.cz/css/main.css (expiration not specified)
https://chat.web4u.cz/css/widget-mobile.css (expiration not specified)
https://chat.web4u.cz/fonts/open-sans-v13-cyrillic…cyrillic-ext-600.woff2 (expiration not specified)
https://chat.web4u.cz/fonts/open-sans-v13-cyrillic…llic-ext-regular.woff2 (expiration not specified)
https://chat.web4u.cz/img/glyphicons-halflings-white.png (expiration not specified)
https://chat.web4u.cz/img/loading.gif (expiration not specified)
https://chat.web4u.cz/img/redesign/attention-grabber-arrow.png (expiration not specified)
https://chat.web4u.cz/img/redesign/bg-widget-header-bar.png (expiration not specified)
https://chat.web4u.cz/img/redesign/icon-widget-mail.png (expiration not specified)
https://chat.web4u.cz/img/redesign/logo-widget-link.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Balloon.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Big-Grin.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Cool.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Crying.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Devil.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Goodbye.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Kiss.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Love.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Sad.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Scared.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Silly.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Straight-Face.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Tongue.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/Winking.png (expiration not specified)
https://chat.web4u.cz/img/redesign/smileys/smile.png (expiration not specified)
https://chat.web4u.cz/js/customer-chat-attention-grabber.min.js (expiration not specified)
https://chat.web4u.cz/js/customer-chat-widget-libs.min.js (expiration not specified)
https://chat.web4u.cz/js/customer-chat-widget.min.js (expiration not specified)
https://chat.web4u.cz/js/lib/error-tracking.js (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…blackcond-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…o-blackit-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…dpro-bold-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…dpro-cond-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…pro-light-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…lightcond-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…o-lightit-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…ro-normal-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/fonts…emiboldit-webfont.woff (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/CallMe_bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/bullet-green.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/bullet-yellow.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…kovany-registrator.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…ntact-form-info-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…n-accordion-closed.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/domain-check-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…ain-check-input-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…in-check-submit-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/false.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…tLogin_mojeID_icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/fb-icon-dark.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab3_1.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab3_2.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab3_3.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab4-info.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hometab5-info.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…-webhosting-label1.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/image…-webhosting-label2.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-content-bg.jpg (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-header-bg.jpg (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-spolehlivost.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-test.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-test2.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hp-top.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hptabactive.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/hptabpasiv.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/kontakt-form-check.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/lab-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/login-form-submit.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/CCK.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/FENIX_CZ.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/KindredGroup.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/Kosmas.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/MUP.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/Zasilkovna.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/facebook.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/google_plus.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/linkedin.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/logos/twitter.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/servers-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/speach-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/speed-icon.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/tarif-price-bg.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/true.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/images/w4u-logo.png (expiration not specified)
https://www.web4u.cz/static/presentation2014/js/fast-login-form.js (expiration not specified)
https://www.web4u.cz/static/presentation2014/js/jquery-ui.min.js (expiration not specified)
https://www.web4u.cz/z_graphics/order/ajaxLoader.gif (expiration not specified)
https://www.web4u.cz/z_graphics/shade1x1.png (expiration not specified)
https://www.web4u.cz/z_js/loading-process-whois-whisperer-integration.js (expiration not specified)
https://static.hotjar.com/c/hotjar-225344.js?sv=5 (60 seconds)
https://www.google.com/recaptcha/api.js?hl=cs (5 minutes)
https://www.google.com/recaptcha/api2/webworker.js?hl=cs&v=r20171212152908 (5 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-WXQR3H (15 minutes)
https://connect.facebook.net/en_US/fbds.js (20 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/165193…49010?v=2.8.6&r=stable (20 minutes)
https://www.google-analytics.com/plugins/ua/ec.js (60 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 13Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 125.5KiB (27% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-content-bg.jpg could save 46.2KiB (21% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-header-bg.jpg could save 26.7KiB (22% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hometab4-info.png could save 9.1KiB (40% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…kovany-registrator.png could save 3.5KiB (43% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-spolehlivost.png could save 3.2KiB (46% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-test.png could save 2.9KiB (48% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-top.png could save 2.7KiB (47% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-test2.png could save 2.4KiB (49% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…-webhosting-label1.png could save 2.2KiB (55% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/lab-icon.png could save 2.2KiB (46% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/speed-icon.png could save 2.1KiB (45% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/speach-icon.png could save 2.1KiB (44% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…-webhosting-label2.png could save 1.7KiB (50% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/w4u-logo.png could save 1.6KiB (20% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…n-accordion-closed.png could save 1.4KiB (59% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/servers-icon.png could save 1.3KiB (45% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…ntact-form-info-bg.png could save 1.3KiB (23% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/domain-check-bg.png could save 1.2KiB (16% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hometab3_3.png could save 1.1KiB (60% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/true.png could save 982B (68% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/bullet-green.png could save 948B (84% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/google_plus.png could save 946B (68% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…tLogin_mojeID_icon.png could save 899B (45% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/linkedin.png could save 898B (80% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/twitter.png could save 891B (66% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/facebook.png could save 888B (85% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/bullet-yellow.png could save 882B (84% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/login-form-submit.png could save 879B (79% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…in-check-submit-bg.png could save 866B (75% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/false.png could save 858B (92% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…ain-check-input-bg.png could save 854B (91% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-header-bg.jpg could save 26.7KiB (22% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hometab4-info.png could save 9.1KiB (40% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…kovany-registrator.png could save 3.5KiB (43% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-spolehlivost.png could save 3.2KiB (46% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-test.png could save 2.9KiB (48% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-top.png could save 2.7KiB (47% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hp-test2.png could save 2.4KiB (49% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…-webhosting-label1.png could save 2.2KiB (55% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/lab-icon.png could save 2.2KiB (46% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/speed-icon.png could save 2.1KiB (45% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/speach-icon.png could save 2.1KiB (44% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…-webhosting-label2.png could save 1.7KiB (50% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/w4u-logo.png could save 1.6KiB (20% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…n-accordion-closed.png could save 1.4KiB (59% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/servers-icon.png could save 1.3KiB (45% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…ntact-form-info-bg.png could save 1.3KiB (23% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/domain-check-bg.png could save 1.2KiB (16% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/hometab3_3.png could save 1.1KiB (60% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/true.png could save 982B (68% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/bullet-green.png could save 948B (84% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/google_plus.png could save 946B (68% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…tLogin_mojeID_icon.png could save 899B (45% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/linkedin.png could save 898B (80% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/twitter.png could save 891B (66% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/logos/facebook.png could save 888B (85% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/bullet-yellow.png could save 882B (84% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/login-form-submit.png could save 879B (79% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…in-check-submit-bg.png could save 866B (75% reduction).
Compressing https://www.web4u.cz/static/presentation2014/images/false.png could save 858B (92% reduction).
Compressing https://www.web4u.cz/static/presentation2014/image…ain-check-input-bg.png could save 854B (91% reduction).
priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 11 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.web4u.cz/static/presentation2014/js/jq…6dbfa834988de2b735a6ba
https://www.web4u.cz/z_js/jquery.cookie.js?bb911d5…6dbfa834988de2b735a6ba
https://www.web4u.cz/z_js/jquery.easing.1.3.js?${w4u_hash_js}
https://www.web4u.cz/z_js/hd-infoFloat.js?bb911d52…6dbfa834988de2b735a6ba
https://www.google.com/recaptcha/api.js?hl=cs
https://www.web4u.cz/static/presentation2014/js/jquery-ui.min.js
https://www.web4u.cz/z_js/whois-whisperer.js?bb911…6dbfa834988de2b735a6ba
https://www.web4u.cz/web/js/jQuery/jquery.json.js?…6dbfa834988de2b735a6ba
https://www.web4u.cz/z_js/loading-process.js?bb911…6dbfa834988de2b735a6ba
https://www.web4u.cz/z_js/loading-process-whois-whisperer-integration.js
https://www.web4u.cz/static/presentation2014/js/fast-login-form.js
https://www.web4u.cz/z_js/jquery.cookie.js?bb911d5…6dbfa834988de2b735a6ba
https://www.web4u.cz/z_js/jquery.easing.1.3.js?${w4u_hash_js}
https://www.web4u.cz/z_js/hd-infoFloat.js?bb911d52…6dbfa834988de2b735a6ba
https://www.google.com/recaptcha/api.js?hl=cs
https://www.web4u.cz/static/presentation2014/js/jquery-ui.min.js
https://www.web4u.cz/z_js/whois-whisperer.js?bb911…6dbfa834988de2b735a6ba
https://www.web4u.cz/web/js/jQuery/jquery.json.js?…6dbfa834988de2b735a6ba
https://www.web4u.cz/z_js/loading-process.js?bb911…6dbfa834988de2b735a6ba
https://www.web4u.cz/z_js/loading-process-whois-whisperer-integration.js
https://www.web4u.cz/static/presentation2014/js/fast-login-form.js
Optimize CSS Delivery of the following:
https://www.web4u.cz/static/presentation2014/css/m…e268bdafd157f96751e68d
https://www.web4u.cz/static/presentation2014/css/m…e268bdafd157f96751e68d
https://www.web4u.cz/static/presentation2014/css/l…e268bdafd157f96751e68d
https://www.web4u.cz/z_css/loadingProcess.css?
https://www.web4u.cz/static/presentation2014/css/m…e268bdafd157f96751e68d
https://www.web4u.cz/static/presentation2014/css/l…e268bdafd157f96751e68d
https://www.web4u.cz/z_css/loadingProcess.css?
priority - 0Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 2.4KiB (31% reduction).
Minifying https://www.web4u.cz/z_js/jquery.easing.1.3.js?${w4u_hash_js} could save 1.1KiB (58% reduction) after compression.
Minifying https://connect.facebook.net/en_US/fbds.js could save 691B (33% reduction) after compression.
Minifying https://www.web4u.cz/z_js/whois-whisperer.js?bb911…6dbfa834988de2b735a6ba could save 614B (16% reduction) after compression.
Minifying https://connect.facebook.net/en_US/fbds.js could save 691B (33% reduction) after compression.
Minifying https://www.web4u.cz/z_js/whois-whisperer.js?bb911…6dbfa834988de2b735a6ba could save 614B (16% 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 672B (11% reduction).
Minifying https://chat.web4u.cz/css/main.css could save 672B (11% reduction) after compression.
web4u.cz Desktop Resource Breakdown
| Total Resources | 145 |
| Number of Hosts | 18 |
| Static Resources | 108 |
| JavaScript Resources | 33 |
| CSS Resources | 14 |
web4u.cz HTML validation
Errors
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Line: 15 Column: 11 - 59
"... <meta http-equiv="Content-Language" content="" /> ..."
"... <meta http-equiv="Content-Language" content="" /> ..."
Bad value “/z_js/jquery.easing.1.3.js?${w4u_hash_js}” for attribute “src” on element “script”: Illegal character in query: “{” is not allowed.
Line: 29 Column: 11 - 90
"... <script type="text/javascript" src="/z_js/jquery.easing.1.3.js?${w4u_hash_js}" ></scri..."
"... <script type="text/javascript" src="/z_js/jquery.easing.1.3.js?${w4u_hash_js}" ></scri..."
No space between attributes.
Line: 34 Column: - 73
"...ngProcess.css?"edbf82718ff82ac..."
"...ngProcess.css?"edbf82718ff82ac..."
Attribute “edbf82718ff82ac118e268bdafd157f96751e68d” not allowed on element “link” at this point.
Line: 34 Column: 1 - 113
"...</script> <link type="text/css" rel="stylesheet" href="/z_css/loadingProcess.css?"edbf82718ff82ac118e268bdafd157f96751e68d> <scri..."
"...</script> <link type="text/css" rel="stylesheet" href="/z_css/loadingProcess.css?"edbf82718ff82ac118e268bdafd157f96751e68d> <scri..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Line: 159 Column: 86 - 149
"...="_blank"><img src="/static/presentation2014/images/logos/facebook.png" /></a> ..." Line: 160 Column: 97 - 163
"...="_blank"><img src="/static/presentation2014/images/logos/google_plus.png" /></a> ..." Line: 161 Column: 79 - 141
"...="_blank"><img src="/static/presentation2014/images/logos/twitter.png" /></a> ..." Line: 605 Column: 56 - 119
"...x_ribbon"><img src="/static/presentation2014/images/logos/FENIX_CZ.png" /> ..."
"...="_blank"><img src="/static/presentation2014/images/logos/facebook.png" /></a> ..." Line: 160 Column: 97 - 163
"...="_blank"><img src="/static/presentation2014/images/logos/google_plus.png" /></a> ..." Line: 161 Column: 79 - 141
"...="_blank"><img src="/static/presentation2014/images/logos/twitter.png" /></a> ..." Line: 605 Column: 56 - 119
"...x_ribbon"><img src="/static/presentation2014/images/logos/FENIX_CZ.png" /> ..."
The “font” element is obsolete. Use CSS instead.
Line: 198 Column: 104 - 133
"...: inline"><font style="color: #ff9600;">.EU</f..." Line: 198 Column: 178 - 207
"...>pouze za <font style="color: #ff9600;">46 Kč<..."
"...: inline"><font style="color: #ff9600;">.EU</f..." Line: 198 Column: 178 - 207
"...>pouze za <font style="color: #ff9600;">46 Kč<..."
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
Line: 300 Column: 1 - 70
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..." Line: 472 Column: 1 - 138
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..." Line: 472 Column: 1 - 138
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
Line: 300 Column: 1 - 70
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..." Line: 472 Column: 1 - 138
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..." Line: 472 Column: 1 - 138
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Line: 300 Column: 1 - 70
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..." Line: 472 Column: 1 - 138
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..." Line: 472 Column: 1 - 138
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
Duplicate ID “hosting-tarify”.
Line: 472 Column: 1 - 138
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
"...> <br /> <table id="hosting-tarify" class="displayOnClick hideIt" style="display: none; width: 1135px;" border="0" cellspacing="0" cellpadding="0"> <thea..."
Duplicate ID “registrator”.
Line: 578 Column: 1 - 29
"...m> </div> <a id="registrator" href="#">.cz Ce..." Line: 600 Column: 1 - 29
"...m> </div> <a id="registrator" href="#">.cz Ce..."
"...m> </div> <a id="registrator" href="#">.cz Ce..." Line: 600 Column: 1 - 29
"...m> </div> <a id="registrator" href="#">.cz Ce..."
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Line: 609 Column: 1 - 21
"...e </span> <div class="clearer"></div>..."
"...e </span> <div class="clearer"></div>..."
Warnings
The first occurrence of ID “hosting-tarify” was here.
Line: 300 Column: 1 - 70
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..."
"...v> </div> <table id="hosting-tarify" border="0" cellspacing="0" cellpadding="0"> <thea..."
The first occurrence of ID “registrator” was here.
Line: 291 Column: 1 - 29
"...m> </div> <a id="registrator" href="#">.cz Ce..." Line: 291 Column: 1 - 29
"...m> </div> <a id="registrator" href="#">.cz Ce..."
"...m> </div> <a id="registrator" href="#">.cz Ce..." Line: 291 Column: 1 - 29
"...m> </div> <a id="registrator" href="#">.cz Ce..."
This document appears to be written in Czech but the “html” start tag has an empty “lang” attribute. Consider using “lang="cs"” (or variant) instead.
Line: 2 Column: 122 - 63
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="" lang=""> <..."
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="" lang=""> <..."
web4u.cz similar domains
Similar domains:
www.web4u.com
www.web4u.net
www.web4u.org
www.web4u.info
www.web4u.biz
www.web4u.us
www.web4u.mobi
www.eb4u.cz
www.web4u.cz
www.qeb4u.cz
www.wqeb4u.cz
www.qweb4u.cz
www.aeb4u.cz
www.waeb4u.cz
www.aweb4u.cz
www.seb4u.cz
www.wseb4u.cz
www.sweb4u.cz
www.eeb4u.cz
www.weeb4u.cz
www.eweb4u.cz
www.wb4u.cz
www.wwb4u.cz
www.wewb4u.cz
www.wweb4u.cz
www.wsb4u.cz
www.wesb4u.cz
www.wdb4u.cz
www.wedb4u.cz
www.wdeb4u.cz
www.wrb4u.cz
www.werb4u.cz
www.wreb4u.cz
www.we4u.cz
www.wev4u.cz
www.webv4u.cz
www.wevb4u.cz
www.weg4u.cz
www.webg4u.cz
www.wegb4u.cz
www.weh4u.cz
www.webh4u.cz
www.wehb4u.cz
www.wen4u.cz
www.webn4u.cz
www.wenb4u.cz
www.webu.cz
www.web4.cz
www.web4y.cz
www.web4uy.cz
www.web4yu.cz
www.web4h.cz
www.web4uh.cz
www.web4hu.cz
www.web4j.cz
www.web4uj.cz
www.web4ju.cz
www.web4i.cz
www.web4ui.cz
www.web4iu.cz
www.web4u.net
www.web4u.org
www.web4u.info
www.web4u.biz
www.web4u.us
www.web4u.mobi
www.eb4u.cz
www.web4u.cz
www.qeb4u.cz
www.wqeb4u.cz
www.qweb4u.cz
www.aeb4u.cz
www.waeb4u.cz
www.aweb4u.cz
www.seb4u.cz
www.wseb4u.cz
www.sweb4u.cz
www.eeb4u.cz
www.weeb4u.cz
www.eweb4u.cz
www.wb4u.cz
www.wwb4u.cz
www.wewb4u.cz
www.wweb4u.cz
www.wsb4u.cz
www.wesb4u.cz
www.wdb4u.cz
www.wedb4u.cz
www.wdeb4u.cz
www.wrb4u.cz
www.werb4u.cz
www.wreb4u.cz
www.we4u.cz
www.wev4u.cz
www.webv4u.cz
www.wevb4u.cz
www.weg4u.cz
www.webg4u.cz
www.wegb4u.cz
www.weh4u.cz
www.webh4u.cz
www.wehb4u.cz
www.wen4u.cz
www.webn4u.cz
www.wenb4u.cz
www.webu.cz
www.web4.cz
www.web4y.cz
www.web4uy.cz
www.web4yu.cz
www.web4h.cz
www.web4uh.cz
www.web4hu.cz
www.web4j.cz
www.web4uj.cz
www.web4ju.cz
www.web4i.cz
www.web4ui.cz
www.web4iu.cz
web4u.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.
web4u.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.