O2.CZ O2 | Volání, internet, televize a balíčky O2 Spolu

o2.cz Website Information

Daily Unique Visits: 45,557

Daily Page Views: 273,342

Income Per Day: $547

Estimated Value: $393,840

This website is located in Czech Republic and is using following IP address 160.218.161.162. See the complete list of popular websites hosted in Czech Republic.

o2.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.

Website o2.cz is using the following name servers:

  • dns.iol.cz
  • ns2.tel.cz

and is probably hosted by O2 Czech Republic, a.s.. See the full list of other websites hosted by O2 Czech Republic, a.s..

The highest website o2.cz position in Alexa rank database was 30947 and the lowest rank position was 39918. Current position of o2.cz in Alexa rank database is 31482.

Desktop speed score of o2.cz (48/100) is better than the results of 21.82% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of o2.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 o2.cz (51/100) is better than the results of 35.73% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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o2.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.


o2.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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o2.cz server information

Servers Location

o2.cz desktop page speed rank

Last tested: 2017-05-31


Desktop Speed Bad
48/100

o2.cz Desktop Speed Test Quick Summary


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priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 3 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

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priority - 5Leverage browser caching

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priority - 3Avoid landing page redirects

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priority - 0Minify CSS

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priority - 0Minify JavaScript

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o2.cz Desktop Resource Breakdown

Total Resources172
Number of Hosts33
Static Resources63
JavaScript Resources34
CSS Resources9

o2.cz mobile page speed rank

Last tested: 2017-05-31


Mobile Speed Bad
51/100

o2.cz Mobile Speed Test Quick Summary


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

Your page has 3 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

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priority - 40Optimize images

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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.

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https://www.o2.cz/
https://www.o2.cz/osobni/

priority - 8Leverage 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:

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https://o2.vivtracking.com/vivtracking.min.js (expiration not specified)
https://www.o2.cz/file_conver/540190/_496x160_HPmalepromo_slza.jpg (expiration not specified)
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https://www.google-analytics.com/analytics.js (2 hours)

priority - 0Enable compression

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priority - 0Minify CSS

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priority - 0Minify JavaScript

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

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o2.cz Mobile Resource Breakdown

Total Resources174
Number of Hosts34
Static Resources63
JavaScript Resources35
CSS Resources9

o2.cz mobile page usability

Last tested: 2017-05-31


Mobile Usability Good
99/100

o2.cz Mobile Usability Test Quick Summary


priority - 1Size 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 <button type="button" class="slick-prev sli…slick-disabled">Previous</button> and 4 others are close to other tap targets.
The tap target <button type="button" class="slick-next slick-arrow">Next</button> and 4 others are close to other tap targets.

o2.cz HTML validation

Errors

X-UA-Compatible HTTP header must have the value “IE=edge”, was “IE=Edge,chrome=1”.

Line: Column: -
"......"

Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

Line: 225 Column: 6 - 50
"...nt"> <div class="d2-header__wrapper d2-bgr--blue"> ..."

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

Line: 309 Column: 10 - 3892
"... <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHgAAAB4CAMAAAAOusbgAAABy1BMVEUAAAATfMAilNElJm1Gqt0ghsYdPIY1oNgjKHA6o9oWhcYlJGwlJW09ptslJWwlJGxFqt0gNn89ptohMHkkJ24jKm83odkjJ3IiLXVFq94YickajMohK3Mnl9E1odcsZ6UvndUqmtQkJ28ej80iMXk+pdwfks9Gq94smtUhk9BHrN0dQIpHrN4Zisn///4lJGwjK3MkJ28iL3cdQIseOIIhMnsgNH4dY6weW6cdTZkdYKoeks8XisodRJATgcQTfsIWcLczoNgilNApmdMWh8gdPIcwntYll9ITer8cj804otkdZa8eWaUUd70eVKEdR5MZi8saarI7pdsdSZUVhcZCqd0cZ7AWcrlFq94YbrUeO4UUg8UZbLQeVqI+p9scarIeU54eUZ0eUJsVdLotm9YeV6MVdrsfXqkajMwTfMErm9UVf8Iol9Lx9vrF3O7i7/fj6PHj6/NPnM/T5/PH0+U6ZKZts9ycu9uLuNprqNQ2gb9WfLbV3+25y+GJv+CQr9Nynsskfb6pyeNsrthQlcoxj8lkk8VWisE6aq221OmZxOKAnccyh8R4kL0pdLdWc6p8s9mqudUrVp1BkMjH1eeOpcpIdrMsYag5XZ60Fp84AAAALnRSTlMA/v7f4P7egH9c3r+hcHDvwL2glWA1ICDv78CYUEgwEO/fz3Bw7+/Qx8CQ77Cwwd2y1QAACO1JREFUaN7Ek1GKg0AMhgPCIigWUdEHoVD6riOON+glev+DbPITJjsou91l63wmk+RPpqmF0iH9WDVlWWTMZfobfPVWFGVTjR29RpcXWPZ/XIr8x+XX6ja9hayl72jtXc9c3RfTW8l6OqT61eu6l2XjUtEBud6EO4fEhIBjJrioegAUGIi+QjSR047SnUKZZu9+c+7OIv61qyDPlllhQlwf8MJARYF+mAUnzgYPheMAbAInGqqYDnDJuuECSjfYvyqbT6UgpZ1Ppk3wwmC4xi+8iMXPsQgiIUpwgt1HKHcSsuV0bsR0SwI6IsqXBOREVHvvl4V9Z+zcsO4iJ6KCJgMJISRoarSJcKkmosEnYCDqfBJ6Gje/eb/B2SK4E+VegxhyiahgmELAEE5GRXGUEEa6b0m4U7MloaFmTUJD9ZqEOt3ij+fzua5yIKyogGaW8yMRARdsSHso2UOpuRgEiZA/ePHjwfYF0eWEPaKTDW4BuoyiqyUyoENKKLD4k5jyZ20cCKL4VPdlDtSoUCxw6S7EhWvBXcCoEshgcYVkHK5IBMIImyR3H/c249l9Wuu8HlX+rb3/5um9SBtrcRdMcHzBgr8y525hRplyY2SUEm9DZssQi2Zhi98ovg/fKb4TFM9j8xm1wLahPxybMjKU292hjyENNX9B89vE/rI/FpFHcexZFF8IYztiYA1Pab68Erf0Fm51KJEIygOr+AswH6fQchI9Yi+j/05zmha8jwJ8TLKilZ5TEwXZnlZ6JgRXZXSDspoQPNNy8nK3XV3NZlXdbYe7zem2z+o86IN3w9ga+9UxAjuNE4KfFcIPuJccC4a/sE5hxXn0rKManuSoiOQCxTD0UweOctOOq+0Gp6A0pB8qatxSi13wibdorXOkJxW44e7/gg63rHNEcGYa5l9g1eJBQ+aDl8ufUQ2ugLIBT+h9fuFBZlfAYew9Px+UaL3OsjXITDM9T1HYuBvmmsj869wpv7ODVD0ZG4ozPSrAk365LtrjWWs86UEhenWe7ajmrv90olddcIBHGd0RNyF14Q5Z44ngAO/uVRxS7azqt8aT8ofcfEyz3Re5gcfzusG98D53XOGFDHguXBOzlIsig6UJTvM8TU3Hw3mayswuCnd6uS3wZdzc1ov71+e1eEErMzGmFADWgMjyFhIiOL1NLsGJ7flr9xKZIBiVRIrgzclgCS73KFEwCOZ1Kh3/CRYEF4kPVIOtf7RVTWsiQRRsD17yY/wJOznsQZAcBFEkgT0IgogtmRzieJA16kGRIOQPb73qj1qZOLiHrel+H9X13mNGR+8arM+4SaVHfU9PDO4RiGEYMME2Q/uaf7ioAFsDyPzT5ZFFlheglB7L9e5AfkPfm1Tv+W2/p6cbDntDoNcb2sUFwJICEOWWnmngQ8jiUODz255qyTNQQQrd8A7kT29hfbAF5Z/6rdahVFzcwbk+MOSmS5EWdGt9rUEQrE+FhP5JPo0cpqb0dMwQstD9+hb9a/+aP+TM95MkRR9J4xsaKnBoAbCRfIDCVX7Wn4FKVdp6Kr9zmRqmKiCGrv/yN/oKgutb2Nfnt8q0TN/U71myVnXUME8mVrnxyxh4GSNlGA1sIsx53XI4CxUsotENfyCLLKVRwE0i8G78iMvwGByzGMjvc98j6RqOuuFcpoaizHK5xyaMc+T1sL8TrnTDIhuBwaO4BGQhVb5e5NYXMgKkmrtcB3L7td9v60KNcSPMGNEoAERF4tLRPYMCKcVKZ5UR+9OSybKKOs7LbVmNwRPL4OAzruOJGbynui3y0ey9Tk7GVcqP6iAwcZNmTHO0fesIvjpHtvId4Y1c1RFWyIWRvJvexIRWONvzExbeHz0pzd1SuO/4y3l6rhamutXdPd3CtMac3zqN8Nug25bBl0Z+sU8dHHw3Tk1zTzW53XJ5o5XrPnW7XQTwhronmMPulrfGLkt2CRdCk2tw7IIgJDb433DYfDt2sWnXtXzU4q/huq1WqwtDxwXDDZKRYu5D/a6XGItDIYg9jjwLr+hAuFZrZhdQzGacPytosUHCmAVVGFMwKDd+oS/3pjRRQbFJ7CpA7ex410pAE2iCAJkrbgM6bFyME2cbB+2y3O2qrwO5rJa+OCzsWSADL9hs5m4+n5OgVWR+js2AWwIrUY5EJ6pvL+1xHBI/lzA49wMouLGAOXcwBUmamBFI0CQp52oAmh5o852/WHlBaR6BHBaD/w/4/7xpELj2M/GDG3aQclw5goXhIqOKAcN4TG9d2z7MtTpQGYhT6h6eB4NnXACdDHtaEjMusoO0QhxpetaG5/wBIqkN8Or/4B6MEn7KCTprCEUdOPc0aAIG/+mlbFrcBmIwLILB+GAwORiSkGxC2E/aX2BfEi9ZvCdjGvApJx+G4Fuhv78aZSaq6HicLm4eRu9IryTPze+j8OOdoXd//jLYvrjp4dGRfzb3zBzm+ejIh90zc/jusu/x8CLPK429qn5ye+V43ANOX3q0nS9goapSVRUeDFWiUoq5DuOXqOTSIFtU2MTsabUFfZBn7DguL2CrylKpEvWCksKqaMz2FJkC8xE7pkikz7tbWNq9rMzMzQ6Fi8xT92zIkSWk2b9R3tr3myuAp0u2z+7JEwC87rO9k16/fzy7dfAVAEJTTljZEQ08WiYmFQtccu0hBIDlx9fpnO5keHEFyIvOio6+QsJpUdhEPNVxoU9XXBflWMeFZAOabcF0nLIlCq47Tj8o7TpTmZu3RCARaB7WxRkLLS0Gg46sZa/t7QyxgQtR257P7bkt2haVQQ+FMhs0aEJz0aLA0LOFbmFGXRJaMcl1OQLDy+EPWmfKjq8tbXwNhRLR2oAlXR+G2B1GY53ClXg3CoebpmIAJjTm5+6/E4Jg+nknpkCIl+u6f762F6uf2vOuJKzvQAgO4kfdOvHRceJU56gavsiVOzZBxY7ZI+cxBidpcJIcTQhriP75JIU+ouDo5+Rr+tdmEfiIgubY/LXYkNiikQP9FRfNc/wAA6zCZNaMyiwJl3Abqyh+mybJcxAEX30sQJJv07c4SsHFb7+ODVoWtv4jAAAAAElFTkSuQmCC" class="d2-row__item"></span..."

Stray end tag “span”.

Line: 309 Column: 3893 - 3899
"...ow__item"></span> ..." Line: 2952 Column: 2 - 8
"... </a> </span> <spa..." Line: 2964 Column: 2 - 8
"... </a> </span> </div..."

Attribute “transform-origin” not allowed on element “g” at this point.

Line: 895 Column: 3 - 132
"...ipPath> <g class="d2-animate__rotate-in" style="--d2-animate-rotate-start:-67deg;--d2-animate-duration:1.5s" transform-origin="49.5 53.1"> <!--s..." Line: 1077 Column: 2 - 135
"...ipPath> <g class="d2-animate__rotate-in" style="--d2-animate-rotate-start: -103deg; --d2-animate-duration: 1.5s" transform-origin="49.5 53.1"> <!-..." Line: 1261 Column: 3 - 133
"...ipPath> <g class="d2-animate__rotate-in" style="--d2-animate-rotate-start:-150deg;--d2-animate-duration:1.5s" transform-origin="89.9 52.8"> <!--s..." Line: 1456 Column: 3 - 133
"...ipPath> <g class="d2-animate__rotate-in" style="--d2-animate-rotate-start:-150deg;--d2-animate-duration:1.5s" transform-origin="89.9 52.8"> <!--s..."

Attribute “loading” not allowed on element “img” at this point.

Line: 2950 Column: 4 - 93
"... > <img src="/osobni/-a107907?field=btnImage" alt="" width="144" height="43" loading="lazy"/></span..." Line: 2962 Column: 4 - 93
"... > <img src="/osobni/-a107978?field=btnImage" alt="" width="130" height="43" loading="lazy"/></span..." Line: 3674 Column: 1 - 2
"...<picture> <img loading="lazy" src="/osobni/-a104440?field=data&amp;_linka=a398230" alt="Technologie bondingu" class="d2-img d2-img--full-width d2-animate__zoom" width="344" height="233" > </pic..." Line: 3708 Column: 1 - 2
"... 768px)"> <img loading="lazy" src="/osobni/-a104445?field=data&amp;_linka=a386834" alt="O2 Smart Box" class="d2-img d2-img--full-width d2-animate__zoom" width="344" height="233" > </pic..." Line: 3774 Column: 1 - 2
"...<picture> <img loading="lazy" src="/osobni/-a104447?field=data&amp;_linka=a380733" alt="O2 Security" class="d2-img d2-img--full-width d2-animate__zoom" width="344" height="233" > </pic..."

End tag “span” seen, but there were open elements.

Line: 2950 Column: 94 - 100
"...g="lazy"/></span> </..." Line: 2962 Column: 94 - 100
"...g="lazy"/></span> </..."

Unclosed element “a”.

Line: 2949 Column: 1 - 4
"...g__auto"> <a href="https://play.google.com/store/apps/details?id=cz.o2.moje#_il=czos-hp-btn-googleplay" data-tracking-button-id="a107907" aria-label="Tlačítko s obrázkem" target="_blank" > <i..." Line: 2961 Column: 1 - 4
"...g__auto"> <a href="https://apps.apple.com/cz/app/moje-o2/id564164409#_il=czos-hp-btn-applestore" data-tracking-button-id="a107978" aria-label="Tlačítko s obrázkem" target="_blank" > <i..."

Duplicate ID “m-x”.

Line: 3397 Column: 1 - 78
"...a104435"> <div class="d2-width d2-width--responsive insite-controls-container" id="m-x"> ..." Line: 3636 Column: 1 - 57
"...a104439"> <div class="d2-width insite-controls-container" id="m-x"> <..."

Element “noindex” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Line: 3995 Column: 7 - 15
"...iv> </div><noindex> <sc..."

Warnings

The first occurrence of ID “m-x” was here.

Line: 3003 Column: 1 - 78
"...a104431"> <div class="d2-width d2-width--responsive insite-controls-container" id="m-x"> ..." Line: 3003 Column: 1 - 78
"...a104431"> <div class="d2-width d2-width--responsive insite-controls-container" id="m-x"> ..."

Unsupported SVG version specified. This validator only supports SVG 1.1. The recommended way to suppress this warning is to remove the “version” attribute altogether.

Line: 3794 Column: 140 - 234
"...="_blank"><svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" version="1.0" viewBox="0 0 20 20"><path ..."

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o2.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.


o2.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.