czechopen.net Website Information

Daily Unique Visits: 954

Daily Page Views: 1,908

Income Per Day: $6

Estimated Value: $1,440

This website is located in Czech Republic and is using following IP address 85.93.177.223. See the complete list of popular websites hosted in Czech Republic.

czechopen.net is registered under .NET top-level domain. Please check other sites in .NET zone.

Website czechopen.net is using the following name servers:

ns2.prohosting.cz
ns3.prohosting.cz
ns4.prohosting.cz
ns1.prohosting.cz

and is probably hosted by Sprintel s.r.o.. See the full list of other websites hosted by Sprintel s.r.o..

The highest website czechopen.net position in Alexa rank database was 36530 and the lowest rank position was 995282. Current position of czechopen.net in Alexa rank database is 751485.

Desktop speed score of czechopen.net (60/100) is better than the results of 35.69% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of czechopen.net (54/100) is better than the results of 0.26% of other sites and means that the page is not mobile-friendly.

Mobile speed score of czechopen.net (48/100) is better than the results of 30.32% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

czechopen.net 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.

czechopen.net 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.

Domain Name: CZECHOPEN.NET
Registry Domain ID: 96665928_DOMAIN_NET-VRSN
Registrar WHOIS Server: whois.tucows.com
Registrar URL: http://www.tucows.com
Updated Date: 2021-03-15T10:08:55Z
Creation Date: 2003-04-10T06:12:52Z
Registry Expiry Date: 2022-04-10T06:12:52Z
Registrar: Tucows Domains Inc.
Registrar IANA ID: 69
Registrar Abuse Contact Email: domainabuse@tucows.com
Registrar Abuse Contact Phone: +1.4165350123
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS1.PROHOSTING.CZ
Name Server: NS2.PROHOSTING.CZ
Name Server: NS3.PROHOSTING.CZ
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-01-19T07:11:40Z

czechopen.net server information

Servers Location

czechopen.net desktop page speed rank

Last tested: 2019-10-31

Desktop Speed Bad

60/100

czechopen.net Desktop Speed Test Quick Summary

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czechopen.net Desktop Resource Breakdown

Total Resources	91
Number of Hosts	7
Static Resources	84
JavaScript Resources	7
CSS Resources	5

czechopen.net mobile page speed rank

Last tested: 2019-08-12

Mobile Speed Bad

48/100

czechopen.net Mobile Speed Test Quick Summary

priority - 60Leverage 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.

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priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.

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priority - 13Enable compression

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czechopen.net Mobile Resource Breakdown

Total Resources	91
Number of Hosts	7
Static Resources	84
JavaScript Resources	7
CSS Resources	5

czechopen.net mobile page usability

Last tested: 2019-08-12

Mobile Usability Bad

54/100

czechopen.net Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

HOSPODSKÝ KVÍZ and 10 others render only 4 pixels tall (10 CSS pixels).

11.7.-28.7. 2019 | Pardubice renders only 6 pixels tall (16 CSS pixels).

Czech Open renders only 5 pixels tall (14 CSS pixels).

PŘÍMÝ PŘENOS PARTIÍ and 3 others render only 4 pixels tall (10 CSS pixels).

UBYTOVÁNÍ A STRAVOVÁNÍ and 1 others render only 4 pixels tall (10 CSS pixels).

TURISTICKÉ INFORMACE and 7 others render only 4 pixels tall (10 CSS pixels).

Like renders only 4 pixels tall (11 CSS pixels).

277 renders only 4 pixels tall (11 CSS pixels).

Mistrovství Ev…kých týmů 2019 and 1 others render only 5 pixels tall (12 CSS pixels).

Mistrovství Ev…kých týmů 2019 renders only 6 pixels tall (16 CSS pixels).

Vstup pro divá…je bezplatný. and 2 others render only 5 pixels tall (13 CSS pixels).

primátor statu…artin Charvát. and 1 others render only 5 pixels tall (13 CSS pixels).

GM Jiří Štoček…. Gratulujeme! and 8 others render only 5 pixels tall (13 CSS pixels).

Mediální partneři: renders only 5 pixels tall (13 CSS pixels).
UBYTOVÁNÍ A STRAVOVÁNÍ and 12 others render only 4 pixels tall (11 CSS pixels).
| and 11 others render only 5 pixels tall (13 CSS pixels).
& Czech Open -…her, Pardubice and 2 others render only 5 pixels tall (13 CSS pixels).
PRO CLIENT, s.r.o. renders only 5 pixels tall (13 CSS pixels).

priority - 25Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,240 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <ul id="top_menu">Šachy…Fotogalerie</ul> falls outside the viewport.
The element <img src="/uploads/czech…ti-tahouni.png" class="top-pardubicti-tahouni"> falls outside the viewport.
The element <img src="/uploads/czech…ponzori_cz.png"> falls outside the viewport.
The element <input id="cntnt01searchinput" type="text" name="cntnt01searchinput" class="text"> falls outside the viewport.
The element <input type="image" name="submit" class="submit"> falls outside the viewport.
The element <div id="header_stripe_text">11.7.-28.7. 2019 | Pardubice</div> falls outside the viewport.
The element <img src="/uploads/czech…ponz_znaky.png"> falls outside the viewport.
The element <img src="/uploads/czech…partner_cz.png"> falls outside the viewport.
The element <img src="/uploads/czech…partner_cz.gif"> falls outside the viewport.
The element <div class="right"> falls outside the viewport.

priority - 17Size tap targets appropriately

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The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="http://www.czechopen.net/en/"></a> is close to 1 other tap targets.

The tap target <a href="http://www.cze…alove-turnaje/" class="top_link chess">Šachy</a> is close to 1 other tap targets.

The tap target <a href="http://www.cze….net/cz/bridz/" class="top_link bridge">Bridž</a> is close to 3 other tap targets.

The tap target <a href="http://www.cze…pen.net/cz/go/" class="top_link go">Go</a> is close to 3 other tap targets.

The tap target <a href="http://www.cze…/cz/piskvorky/" class="top_link renju">Piškvorky</a> is close to 1 other tap targets.

The tap target <a href="http://www.cze…t/cz/scrabble/" class="top_link scrabble">Scrabble</a> is close to 1 other tap targets.

The tap target <a href="http://www.cze…ospodsky-kviz/" class="top_link hospodskykviz">Hospodský kvíz</a> is close to 1 other tap targets.

The tap target <a href="http://www.cze…et/cz/mankala/" class="top_link mancala">Mankala</a> is close to 4 other tap targets.

The tap target <a href="http://www.cze…n.net/cz/dama/" class="top_link draughts">Dáma</a> is close to 4 other tap targets.

The tap target <a href="http://www.cze…cz/backgammon/" class="top_link backgammon">Backgammon</a> is close to 2 other tap targets.

The tap target <a href="http://www.cze….net/cz/shogi/" class="top_link shogi">Shogi</a> is close to 4 other tap targets.

The tap target <a href="http://www.cze…/cz/dalsi-hry/" class="top_link dalsi">Další hry</a> is close to 1 other tap targets.

The tap target <input type="image" name="submit" class="submit"> is close to 1 other tap targets.

The tap target <a href="http://www.cze…et/cz/novinky/" class="important">Novinky</a> and 3 others are close to other tap targets.

The tap target <a href="http://www.cze…alove-turnaje/" class="interesting">Festivalové turnaje</a> and 1 others are close to other tap targets.

The tap target <a href="http://www.cze…ravni-spojeni/">Dopravní spojení</a> and 7 others are close to other tap targets.

The tap target <form id="u_0_0">Like277</form> is close to 2 other tap targets.

The tap target <form id="u_0_0">Like277</form> and 1 others are close to other tap targets.

The tap target <button id="u_0_1" type="submit" class="inlineBlock _2tga _49ve">Like277</button> is close to 2 other tap targets.

The tap target <a href="http://www.fac…om/czechopencz" class="banner"></a> and 4 others are close to other tap targets.

The tap target <a href="http://www.cze…-championship/">Mistrovství Ev…kých týmů 2019</a> is close to 1 other tap targets.

The tap target <a href="uploads/images…bicky-kraj.jpg">hejtman Pardub…rtin Netolický</a> and 1 others are close to other tap targets.

The tap target <a href="http://www.cze…et/cz/novinky/">NOVINKY</a> and 15 others are close to other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

czechopen.net HTML validation

Errors

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

Line: 1 Column: - 2
"...<?xml version="1..."

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 3 Column: 39 - 80
"...="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <htm..."

Attribute “xmlns:og” not allowed here.

Line: 6 Column: 81 - 52
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <he..."

Attribute “xmlns:fb” not allowed here.

Line: 6 Column: 81 - 52
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <he..."

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

Line: 6 Column: 81 - 52
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <he..."

Bad value “content-Style-Type” for attribute “http-equiv” on element “meta”.

Line: 14 Column: 1 - 59
"...UTF-8" /> <meta http-equiv="content-Style-Type" content="text/css" /> <meta..."

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Line: 17 Column: 9 - 59
"... <meta http-equiv="Content-Language" content="en" /> <..."

Element “script” must not have attribute “charset” unless attribute “src” is also specified.

Line: 38 Column: 5 - 51
"... <script type="text/javascript" charset="utf-8"> ..."

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

Line: 1024 Column: 92 - 152
"...="_blank"><img src="/uploads/czechopen/partners/top_sponzori_en.png" /></a> ..." Line: 1163 Column: 80 - 168
"...="_blank"><img src="/uploads/czechopen/banners/banner_hryahlavolamy.gif" width="140" height="27" /></a> ..." Line: 1164 Column: 74 - 155
"...="_blank"><img src="/uploads/czechopen/banners/banner_asachy.gif" width="140" height="45" /></a> ..." Line: 1166 Column: 111 - 195
"...="_blank"><img src="/uploads/czechopen/banners/banner-chessbase.png" width="140" height="86" /></a> ..." Line: 1167 Column: 92 - 174
"...="_blank"><img src="/uploads/czechopen/banners/banner-wroclaw.png" width="140" height="70" /></a> ..." Line: 1169 Column: 84 - 174
"...="_blank"><img src="/uploads/czechopen/banners/banner-swissmindsports.png" width="140" height="84" /></a> ..." Line: 1171 Column: 71 - 153
"...="_blank"><img src="/uploads/czechopen/banners/banner-gamecon.png" width="140" height="30" /></a> ..." Line: 1231 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/DSCN7578.jpg" border="0" width="540"><br />..." Line: 1235 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/P1270446.jpg" border="0" width="540"><br />..." Line: 1239 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/P1270325.jpg" border="0" width="540"><br />..." Line: 1243 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/P1270132.jpg" border="0" width="540"><br />..." Line: 1247 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/DSCN5922.jpg" border="0" width="540"><br />..." Line: 1270 Column: 73 - 158
"...="_blank"><img src="/uploads/czechopen/partners/media_szachista.gif" width="100" height="34" /></a> ..." Line: 1273 Column: 72 - 156
"...="_blank"><img src="/uploads/czechopen/partners/media_chessbase.gif" width="56" height="56" /></a> ..." Line: 1276 Column: 65 - 151
"...="_blank"><img src="/uploads/czechopen/partners/media_novoborsky.gif" width="100" height="33" /></a> ..." Line: 1279 Column: 72 - 154
"...="_blank"><img src="/uploads/czechopen/partners/media_bschess.gif" width="84" height="33" /></a> ..." Line: 1282 Column: 21 - 98
"... <img src="/uploads/czechopen/partners/media_64.gif" width="58" height="39" /> ..." Line: 1290 Column: 72 - 155
"...="_blank"><img src="/uploads/czechopen/partners/media_chessdom.gif" width="76" height="35" /></a> ..." Line: 1293 Column: 72 - 156
"...="_blank"><img src="/uploads/czechopen/partners/media_pakchess.gif" width="110" height="23" /></a> ..." Line: 1296 Column: 71 - 153
"...="_blank"><img src="/uploads/czechopen/partners/media_chessib.gif" width="84" height="33" /></a> ..." Line: 1299 Column: 68 - 153
"...="_blank"><img src="/uploads/czechopen/partners/media_sakkvilag.png" width="108" height="40" /></a> ..." Line: 1302 Column: 80 - 171
"...="_blank"><img src="/uploads/czechopen/partners/media_eventosdeajedrez.gif" width="56" height="56" /></a> ..."

Attribute “value” not allowed on element “input” at this point.

Line: 1035 Column: 1 - 123
"...Value;"/> <input class="submit" name="submit" title="search" value="Submit" type="image" src="/uploads/czechopen/icons/search.gif" /> </for..."

Element “input” is missing required attribute “alt”.

Line: 1035 Column: 1 - 123
"...Value;"/> <input class="submit" name="submit" title="search" value="Submit" type="image" src="/uploads/czechopen/icons/search.gif" /> </for..."

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

Line: 1136 Column: 1 - 328
"...:140px;"> <iframe src="http://www.facebook.com/plugins/like.php?href=http://www.czechopen.net&layout=button_count&send=false&show_faces=false&width=140&action=like&colorscheme=light&height=21" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:140px; height:21px;" allowTransparency="true"></ifram..."

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.

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

Line: 1181 Column: 27 - 87
"... <marquee behavior="scroll" direction="left" scrollamount="2"> ..."

The “center” element is obsolete. Use CSS instead.

Line: 1199 Column: 7 - 14
"...iv> --> <center> </cen..." Line: 1199 Column: 32 - 39
"...er> <br /><center> <div ..." Line: 1230 Column: 29 - 36
"... /><br /> <center> <di..."

The “align” attribute on the “tr” element is obsolete. Use CSS instead.

Line: 1288 Column: 39 - 35
"...columns5"> <tr align="center"> ..."

Bad value “104,0,10,77” for attribute “coords” on element “area”: A circle must have three comma-separated integers. The first integer must be less than the third. A polyline must have at least six comma-separated integers.

Line: 1357 Column: 5 - 112
"...aky"> <area target="_blank" alt="" title="" href="https://www.pardubice.eu/en/" coords="104,0,10,77" shape="rect"> <..."

Bad value “120,73,214,0” for attribute “coords” on element “area”: The second integer must be less than the fourth. A circle must have three comma-separated integers. A polyline must have at least six comma-separated integers.

Line: 1358 Column: 5 - 135
"...ect"> <area target="_blank" alt="" title="" href="https://www.pardubickykraj.cz/the-pardubice-region" coords="120,73,214,0" shape="rect"> <..."

Bad value “44,196,176,148” for attribute “coords” on element “area”: The second integer must be less than the fourth. A circle must have three comma-separated integers. A polyline must have at least six comma-separated integers.

Line: 1360 Column: 5 - 116
"...ect"> <area target="_blank" alt="" title="" href="https://www.east-bohemia.info" coords="44,196,176,148" shape="rect"> <..."

Warnings

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.

Line: 6 Column: 81 - 52
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <he..."

Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.

Line: 6 Column: 81 - 52
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <he..."

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Line: 29 Column: 5 - 136
"..."/> <script language="JavaScript" type="text/javascript" src="http://www.czechopen.net/modules/jQuery/libraries/jquery-1.4.2/jquery.js"></scri..." Line: 30 Column: 1 - 53
"...</script> <script language="JavaScript" type="text/javascript"> <!-- ..." Line: 35 Column: 1 - 113
"...</script> <script language="JavaScript" type="text/javascript" src="http://www.czechopen.net/modules/jQuery/load.php?id=1"></scri..." Line: 1346 Column: 59 - 111
"...et="_top"><script language="JavaScript" type="text/javascript"> ..."

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 1231 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/DSCN7578.jpg" border="0" width="540"><br />..." Line: 1235 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/P1270446.jpg" border="0" width="540"><br />..." Line: 1239 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/P1270325.jpg" border="0" width="540"><br />..." Line: 1243 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/P1270132.jpg" border="0" width="540"><br />..." Line: 1247 Column: 5 - 84
"...ome"> <img src="uploads/images/Gallery/home-page/DSCN5922.jpg" border="0" width="540"><br />..." Line: 1350 Column: 37 - 47
"...<noscript><img SRC="http://www.toplist.cz/dot.asp?id=27991" border="0" alt="TOPlist" width="1" height="1"></nosc..."

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czechopen.net 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.

czechopen.net 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.

CZECHOPEN.NET Czech Open 2019

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czechopen.net desktop page speed rank

czechopen.net Desktop Speed Test Quick Summary

priority - 40Leverage 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:

priority - 13Enable 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 128.2KiB (71% reduction).

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

Your page has 4 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 4Optimize images

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

Optimize the following images to reduce their size by 38.3KiB (21% reduction).

priority - 1Minify 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 14.5KiB (29% reduction).

priority - 1Minify 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 6.2KiB (17% reduction).

priority - 1Reduce server response time

In our test, your server responded in 0.26 seconds.

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 1.8KiB (20% reduction).

czechopen.net Desktop Resource Breakdown

czechopen.net mobile page speed rank

czechopen.net Mobile Speed Test Quick Summary

priority - 60Leverage 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:

priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 13Enable 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 128.2KiB (71% reduction).

priority - 4Optimize images

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

Optimize the following images to reduce their size by 38.3KiB (21% reduction).

priority - 1Minify 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 14.5KiB (29% reduction).

priority - 1Reduce server response time

In our test, your server responded in 0.26 seconds.

priority - 1Minify 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 6.2KiB (17% reduction).

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 1.8KiB (20% reduction).

czechopen.net Mobile Resource Breakdown

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czechopen.net Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

priority - 25Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,240 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

priority - 17Size 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.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

czechopen.net HTML validation

Errors

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:fb” not allowed here.