CEZ.CZ Skupina ČEZ

cez.cz Website Information

Daily Unique Visits: 33,865

Daily Page Views: 203,190

Income Per Day: $406

Estimated Value: $292,320

This website is located in Czech Republic and is using following IP address 89.111.76.144. See the complete list of popular websites hosted in Czech Republic.

cez.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.

Website cez.cz is using the following name servers:

  • ns20.cez.cz
  • ns10.cez.cz

and is probably hosted by Telco Pro Services, a. s.. See the full list of other websites hosted by Telco Pro Services, a. s..

The highest website cez.cz position in Alexa rank database was 4876 and the lowest rank position was 992232. Current position of cez.cz in Alexa rank database is 42351.

Desktop speed score of cez.cz (58/100) is better than the results of 33.06% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of cez.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 cez.cz (44/100) is better than the results of 24.22% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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cez.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.


cez.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.


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cez.cz server information

Servers Location

cez.cz desktop page speed rank

Last tested: 2017-05-30


Desktop Speed Bad
58/100

cez.cz Desktop Speed Test Quick Summary


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priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

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https://www.cez.cz/edee/content/pubutf5min/ww3/cs/maintenance.js

Optimize CSS Delivery of the following:

https://www.cez.cz/edee/content/resutf/ww4/css/web.css?v=201704201618

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://cez.cz/
https://cez.cz/
https://www.cez.cz/

priority - 7Leverage 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.cez.cz/edee/content/img/banners/fvehouse_455x192.jpg (expiration not specified)
https://www.cez.cz/edee/content/img/pro-media-2017…et-energie-455x250.jpg (expiration not specified)
https://www.cez.cz/edee/content/img/pro-media-2017…_cez_25_let_nahled.jpg (expiration not specified)
https://www.cez.cz/edee/content/sys/ww4/img/banners/kdejinde_455x330.jpg (expiration not specified)
https://www.cez.cz/edee/content/sysutf/ww4/img/ban…CEZ_banner_455x300.jpg (expiration not specified)
https://www.cez.cz/edee/content/sysutf/ww4/img/motives/landing-foto4.jpg (expiration not specified)
https://www.cleverchest.com/analytics.js (expiration not specified)
https://static.hotjar.com/c/hotjar-312343.js?sv=5 (60 seconds)
https://www.cez.cz/edee/content/pubutf5min/ww3/cs/maintenance.js (5 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-TPC5ZC (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/1873656386235788?v=2.7.11 (20 minutes)
https://connect.facebook.net/signals/config/376884079174308?v=2.7.11 (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 0Minify 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 1.3KiB (14% reduction).

Minifying https://www.cez.cz/ could save 1.3KiB (14% reduction) after compression.

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

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Minifying https://connect.facebook.net/en_US/fbds.js could save 695B (33% reduction) after compression.
Minifying https://www.cleverchest.com/analytics.js could save 589B (22% reduction) after compression.

cez.cz Desktop Resource Breakdown

Total Resources46
Number of Hosts16
Static Resources27
JavaScript Resources17
CSS Resources1

cez.cz mobile page speed rank

Last tested: 2017-05-30


Mobile Speed Bad
44/100

cez.cz Mobile Speed Test Quick Summary


priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.cez.cz/edee/content/pubutf5min/ww3/cs/maintenance.js
https://www.cez.cz/edee/content/resutf/ww4/js/prod…/web.js?v=201705090819

Optimize CSS Delivery of the following:

https://www.cez.cz/edee/content/resutf/ww4/css/web.css?v=201704201618

priority - 39Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 378KiB (43% reduction).

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priority - 34Avoid 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://cez.cz/
https://cez.cz/
https://www.cez.cz/

priority - 10Leverage 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.cez.cz/edee/content/img/banners/fvehouse_455x192.jpg (expiration not specified)
https://www.cez.cz/edee/content/img/pro-media-2017…et-energie-455x250.jpg (expiration not specified)
https://www.cez.cz/edee/content/img/pro-media-2017…_cez_25_let_nahled.jpg (expiration not specified)
https://www.cez.cz/edee/content/sys/ww4/img/banners/kdejinde_455x330.jpg (expiration not specified)
https://www.cez.cz/edee/content/sysutf/ww4/img/ban…CEZ_banner_455x300.jpg (expiration not specified)
https://www.cleverchest.com/analytics.js (expiration not specified)
https://static.hotjar.com/c/hotjar-312343.js?sv=5 (60 seconds)
https://www.cez.cz/edee/content/pubutf5min/ww3/cs/maintenance.js (5 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-TPC5ZC (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/1873656386235788?v=2.7.11 (20 minutes)
https://connect.facebook.net/signals/config/376884079174308?v=2.7.11 (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

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 46% of the final above-the-fold content could be rendered with the full HTML response.

priority - 0Minify 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 1.3KiB (14% reduction).

Minifying https://www.cez.cz/ could save 1.3KiB (14% 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 1.3KiB (27% reduction).

Minifying https://connect.facebook.net/en_US/fbds.js could save 695B (33% reduction) after compression.
Minifying https://www.cleverchest.com/analytics.js could save 589B (22% reduction) after compression.

cez.cz Mobile Resource Breakdown

Total Resources45
Number of Hosts16
Static Resources26
JavaScript Resources17
CSS Resources1

cez.cz mobile page usability

Last tested: 2017-05-30


Mobile Usability Good
99/100

cez.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="/cs/pro-invest…romady/47.html" class="underline-anch…range-on-hover">Valná hromada 2017</a> and 2 others are close to other tap targets.

cez.cz HTML validation

Errors

Start tag “body” seen but an element of the same type was already open.

Line: 66 Column: 197 - 202
"...null'} --><body> ..." Line: 277 Column: 196 - 201
"...null'} --><body> ..." Line: 982 Column: 217 - 222
"...null'} --><body> <p cl..."

End tag for “body” seen, but there were unclosed elements.

Line: 69 Column: 197 - 203
"...null'} --></body> <!--F..." Line: 309 Column: 196 - 202
"...null'} --></body> <!-- ..." Line: 990 Column: 217 - 223
"...null'} --></body> <!--<..."

Unclosed element “div”.

Line: 57 Column: 1 - 25
"...nager --> <div class="o-hidden pr"> <!-- ..." Line: 276 Column: 1 - 14
"...bottom "> <div class=""> <!-- ..." Line: 72 Column: 1 - 38
"...ainer --> <div class="container base-container"> <!-- ..." Line: 981 Column: 1 - 107
"...n> </div> <div class="col-xs-8 col-sm-8 xs-no-padding-right sm-margin-top--5 md-no-padding-left sm-padding-right-20"> <!-- ..." Line: 977 Column: 1 - 17
"...l-sm-12"> <div class="row"> <div ..." Line: 976 Column: 1 - 49
"...ss="row"> <div class="full-footer-info col-xs-7 col-sm-12"> <div ..." Line: 975 Column: 1 - 17
"...padding"> <div class="row"> <div ..." Line: 974 Column: 1 - 104
"...ol-sm-4"> <div class="xs-border-bottom-1-gray9 sm-no-border xs-padding-top-20 xs-padding-bottom-10 sm-no-padding"> <div ..." Line: 973 Column: 1 - 32
"...v> </div> <div class="col-xs-12 col-sm-4"> <div ..." Line: 936 Column: 1 - 17
"...te-font"> <div class="row"> <div ..."

Stray start tag “div”.

Line: 72 Column: 1 - 38
"...ainer --> <div class="container base-container"> <!-- ..." Line: 311 Column: 1 - 59
"...ntent --> <div class="gray6-background padding-20 padding-bottom-50"> <h1 c..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 287 Column: 17 - 83
"... <img src="/edee/content/sysutf/ww4/img/motives/hp-bg1-mobile.jpg"/> ..." Line: 353 Column: 1 - 95
"...oltaika"> <img class="img-responsive xs-full-width" src="/edee/content/img/banners/fvehouse_455x192.jpg"> <div ..." Line: 705 Column: 3 - 126
"...nchor"> <img src="/edee/content/img/pro-media-2017/01-leden/20170117-svet-energie-455x250.jpg" class="img-responsive xs-full-width"> <di..." Line: 910 Column: 3 - 115
"...nchor"> <img src="/edee/content/img/pro-media-2017/11-listopad/hv_3q_2017_mala.jpg" class="img-responsive xs-full-width"> <di..."

Unclosed element “section”.

Line: 275 Column: 1 - 112
"...</header> <section class="js_page-height-content p-content clearfix padding-bottom-50 no-background no-padding-bottom "> <div ..."

Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.

Line: 352 Column: - 57
"...ics-bannerClick" data-js-analy..."

Attribute “js_analytics-bannerclick"” not allowed on element “a” at this point.

Line: 352 Column: 1 - 94
"...padding"> <a href="/cs/fotovoltaika.html" js_analytics-bannerClick" data-js-analytics-id="fotovoltaika"> <img ..."

Unclosed element “footer”.

Line: 935 Column: 1 - 184
"...ooter --> <footer class="p-footer gray0-background xs-padding-30 xs-padding-top-20 xs-padding-bottom-10 sm-padding-top-50 sm-padding-left-10 sm-padding-right-10 sm-padding-bottom-35 white-font"> <div ..."

Stray start tag “a”.

Line: 993 Column: 1 - 90
"...a></p>--> <a href="/cs/kontakty.html" class="hover-no-underline-anchor white-font-orange-on-hover">Všechn..."

Warnings

Attribute “js_analytics-bannerclick"” is not serializable as XML 1.0.

Line: 352 Column: 1 - 94
"...padding"> <a href="/cs/fotovoltaika.html" js_analytics-bannerClick" data-js-analytics-id="fotovoltaika"> <img ..."

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cez.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.


cez.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.