cenia.cz Website Information

Daily Unique Visits: 7,102

Daily Page Views: 35,510

Income Per Day: $89

Estimated Value: $53,400

This website is located in Czech Republic and is using following IP address 193.179.186.53. See the complete list of popular websites hosted in Czech Republic.

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

Website cenia.cz is using the following name servers:

ns.env.cz
ns.inecnet.cz

and is probably hosted by T-Mobile Czech Republic a.s.. See the full list of other websites hosted by T-Mobile Czech Republic a.s..

The highest website cenia.cz position in Alexa rank database was 30974 and the lowest rank position was 999335. Current position of cenia.cz in Alexa rank database is 191845.

Desktop speed score of cenia.cz (22/100) is better than the results of 4.83% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of cenia.cz (66/100) is better than the results of 14.96% of other sites and means that the page is not mobile-friendly.

Mobile speed score of cenia.cz (20/100) is better than the results of 4.48% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

cenia.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.

cenia.cz whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

% (c) 2006-2021 CZ.NIC, z.s.p.o.
%
% Intended use of supplied data and information
%
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
%
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
%
% See also a search service at http://www.nic.cz/whois/
%
%
% Whoisd Server Version: 3.15.0
% Timestamp: Wed Nov 13 04:45:44 2024

domain: cenia.cz
registrant: CENIA
admin-c: CEU_JIRIHLOUZEK
admin-c: CEU_MILANKRUPA
nsset: NSS:CEU_INFORMATIKA:2
registrar: REG-ZONER
registered: 08.03.2005 10:45:00
changed: 19.02.2024 07:57:15
expire: 08.03.2025

contact: CENIA
org: Česká informační agentura životního prostředí
name: Tomáš Kotrč
address: Moskevská 1523/63
address: Praha 10
address: 10100
address: CZ
registrar: REG-ZONER
created: 19.02.2024 07:50:52

contact: CEU_JIRIHLOUZEK
name: Jiří Hloužek
address: Vršovická 1442/65
address: Praha 10
address: 10010
address: CZ
registrar: REG-ZONER
created: 23.03.2004 15:50:00
changed: 15.05.2018 21:32:00

contact: CEU_MILANKRUPA
name: Milan Krúpa
address: Kodaňská 10
address: Praha 10
address: 100 10
address: CZ
registrar: REG-ZONER
created: 24.03.2004 09:50:00
changed: 15.05.2018 21:32:00

nsset: NSS:CEU_INFORMATIKA:2
nserver: ns.inecnet.cz
nserver: ns.env.cz
tech-c: SB:CEU_INFORMATIKA
tech-c: CEU_JIRIHLOUZEK
tech-c: CEU_MILANKRUPA
registrar: REG-ZONER
created: 01.10.2007 02:00:00

contact: SB:CEU_INFORMATIKA
org: CENIA, česká informační agentura životního prostředí
name: Jiří Hloužek
address: Vršovická 1442/65
address: Praha 10
address: 100 10
address: CZ
registrar: REG-ZONER
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00

cenia.cz server information

Servers Location

cenia.cz desktop page speed rank

Last tested: 2017-05-31

Desktop Speed Bad

22/100

cenia.cz Desktop Speed Test Quick Summary

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priority - 23Leverage browser caching

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priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 10 blocking CSS resources. This causes a delay in rendering your page.

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priority - 3Avoid landing page redirects

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priority - 0Minify CSS

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cenia.cz Desktop Resource Breakdown

Total Resources	72
Number of Hosts	6
Static Resources	52
JavaScript Resources	11
CSS Resources	11

cenia.cz mobile page speed rank

Last tested: 2017-05-31

Mobile Speed Bad

20/100

cenia.cz Mobile Speed Test Quick Summary

priority - 290Optimize images

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priority - 34Leverage browser caching

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priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 10 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 10Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

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http://cenia.cz/
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priority - 1Minify JavaScript

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

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priority - 0Minify CSS

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cenia.cz Mobile Resource Breakdown

Total Resources	71
Number of Hosts	6
Static Resources	51
JavaScript Resources	11
CSS Resources	11

cenia.cz mobile page usability

Last tested: 2017-05-31

Mobile Usability Medium

66/100

cenia.cz 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.

další instituce resortu ŽP renders only 6 pixels tall (16 CSS pixels).

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INTEGROVANÁ PR…ČIŠTĚNÍ (IPPC) and 17 others render only 5 pixels tall (12 CSS pixels).

Co pro vás zna…rostředí (EEA) and 9 others render only 8 pixels tall (20 CSS pixels).

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článku na webo…otní prostředí and 9 others render only 5 pixels tall (13 CSS pixels).

„Specialista d…ího prostředí“ and 3 others render only 5 pixels tall (13 CSS pixels).

NATURE@work renders only 5 pixels tall (13 CSS pixels).

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

Stránky renders only 8 pixels tall (20 CSS pixels).
1 renders only 5 pixels tall (13 CSS pixels).
následující › and 9 others render only 5 pixels tall (13 CSS pixels).
… renders only 5 pixels tall (13 CSS pixels).
Vyhledávání renders only 7 pixels tall (18 CSS pixels).
Hledat renders only 5 pixels tall (12 CSS pixels).
Evropská agent…rostředí (EEA) and 4 others render only 5 pixels tall (12 CSS pixels).
Powered by renders only 4 pixels tall (11 CSS pixels).
Translate renders only 5 pixels tall (12 CSS pixels).
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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.

priority - 3Size 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="http://www1.ce…w/o-cenia-menu">O CENIA</a> and 17 others are close to other tap targets.

The tap target <a href="https://www.ee…er-report/view">souhrn dat za Českou republiku</a> is close to 1 other tap targets.

The tap target <a href="/www/node?page=1">2</a> and 1 others are close to other tap targets.
The tap target <input id="edit-submit" type="submit" name="op" class="form-submit art-button"> is close to 1 other tap targets.
The tap target <a href="/www/evropska-agentura-zp">Evropská agent…rostředí (EEA)</a> and 5 others are close to other tap targets.
The tap target <a href="/www/o-cenia/i…ifikacni-udaje">Kontakt</a> is close to 2 other tap targets.

cenia.cz HTML validation

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 103
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd"> <html..."

Attribute “xmlns:content” not allowed here.

Line: 12 Column: 104 - 48
"...fa-1.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="cs" version="XHTML+RDFa 1.0" dir="ltr" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/terms/" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:og="http://ogp.me/ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:sioc="http://rdfs.org/sioc/ns#" xmlns:sioct="http://rdfs.org/sioc/types#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#"> <hea..."

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

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

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Line: 14 Column: 49 - 51
"...LSchema#"> <head profile="http://www.w3.org/1999/xhtml/vocab"> <me..."

Stray start tag “head”.

Line: 55 Column: 5 - 10
"...de" > <head> <link..."

Attribute “name” not allowed on element “meta” at this point.

Line: 57 Column: 1 - 108
"...t/css" /> <meta name="google-translate-customization" content="c0199bba77734d87-3c9bc13d87839bdc-g58733bfa0d664ead-c"></meta..."

Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.

Line: 57 Column: 1 - 108
"...t/css" /> <meta name="google-translate-customization" content="c0199bba77734d87-3c9bc13d87839bdc-g58733bfa0d664ead-c"></meta..."

Stray end tag “meta”.

Line: 57 Column: 109 - 115
"...664ead-c"></meta> </hea..."

Stray end tag “head”.

Line: 58 Column: 1 - 7
"..."></meta> </head> <div>..."

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

Line: 71 Column: 1 - 94
".../script> <table border="0" cellpadding="0" cellspacing="0" width="500" align="center" class="listicka"> <tr>..." Line: 80 Column: 1 - 107
"...sp;</div> <table border="0" cellpadding="0" cellspacing="0" width="500" align="center" class="listicka" font="arial"> <tr>..."

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

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

The “border” attribute on the “table” element is obsolete. Use CSS instead.

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

Line: 73 Column: 160 - 201
"...ange();" ><img src="/www/lista/logo.gif" border="0"></a></..." Line: 74 Column: 194 - 250
"...bsp; <img src="/www/lista/show.gif" align="bottom" border="0"></a></..." Line: 83 Column: 95 - 168
"....env.cz/"><img src="/www/lista/logo_main.gif" border="0" style="padding:13px 23px;"></a> ..." Line: 120 Column: 114 - 168
"...:#FFFFFF"><img src="/www/lista/up.gif" align="bottom" border="0"></a></..."

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

Line: 74 Column: 211 - 55
"...></a></td> <td align="right" class="dalsi-instituce uzsi"><a tit..." Line: 120 Column: 9 - 35
"...> <tr> <td colspan="5" align="right"><a tit..."

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

Line: 74 Column: 194 - 250
"...bsp; <img src="/www/lista/show.gif" align="bottom" border="0"></a></..." Line: 120 Column: 114 - 168
"...:#FFFFFF"><img src="/www/lista/up.gif" align="bottom" border="0"></a></..."

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

Line: 78 Column: 1 - 8
"...</table> <center><div i..."

Attribute “font” not allowed on element “table” at this point.

Line: 80 Column: 1 - 107
"...sp;</div> <table border="0" cellpadding="0" cellspacing="0" width="500" align="center" class="listicka" font="arial"> <tr>..."

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

Line: 82 Column: 6 - 47
"...al"> <tr> <td valign="top" rowspan="7" width="220" > ..." Line: 85 Column: 14 - 22
"... </td> <td valign="top">Agentu..." Line: 86 Column: 78 - 22
"...bliky</td> <td valign="top"><a hre..." Line: 87 Column: 152 - 22
"...z</a></td> <td valign="top">Česká ..." Line: 88 Column: 81 - 22
"...ENIA)</td> <td valign="top"><a hre..." Line: 90 Column: 10 - 23
"... </tr> <td valign="top">Česká ..." Line: 91 Column: 63 - 22
"...tředí</td> <td valign="top"><a hre..." Line: 92 Column: 116 - 22
"...z</a></td> <td valign="top">Český ..." Line: 93 Column: 59 - 22
"...ústav</td> <td valign="top"><a hre..." Line: 96 Column: 6 - 22
".../tr> <tr> <td valign="top">Správa..." Line: 97 Column: 58 - 22
"...bliky</td> <td valign="top"><a hre..." Line: 98 Column: 122 - 22
"...z</a></td> <td valign="top">Správa..." Line: 99 Column: 63 - 22
"...parku</td> <td valign="top"><a hre..." Line: 102 Column: 6 - 22
".../tr> <tr> <td valign="top">Správa..." Line: 103 Column: 85 - 22
"...umava</td> <td valign="top"><a hre..." Line: 104 Column: 147 - 22
"...z</a></td> <td valign="top">Správa..." Line: 105 Column: 66 - 22
"...arsko</td> <td valign="top"><a hre..." Line: 108 Column: 6 - 22
".../tr> <tr> <td valign="top">Správa..." Line: 109 Column: 57 - 22
"...odyjí</td> <td valign="top"><a hre..." Line: 110 Column: 119 - 22
"...z</a></td> <td valign="top">Státní..." Line: 111 Column: 75 - 22
"...bliky</td> <td valign="top"><a hre..." Line: 114 Column: 6 - 22
".../tr> <tr> <td valign="top">Výzkum..." Line: 115 Column: 83 - 22
"...aryka</td> <td valign="top"><a hre..." Line: 116 Column: 126 - 22
"...z</a></td> <td valign="top">Výzkum..." Line: 117 Column: 99 - 22
"....v.i.</td> <td valign="top"><a hre..."

The “width” attribute on the “td” element is obsolete. Use CSS instead.

Line: 82 Column: 6 - 47
"...al"> <tr> <td valign="top" rowspan="7" width="220" > ..."

“td” start tag in table body.

Line: 90 Column: 10 - 23
"... </tr> <td valign="top">Česká ..."

Table column 6 established by element “td” has no cells beginning in it.

Line: 120 Column: 9 - 35
"...> <tr> <td colspan="5" align="right"><a tit..."

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

Line: 123 Column: 8 - 13
"...e> </div> </div> <div ..." Line: 917 Column: 938 - 943
"...ns-serif"></div></div>..." Line: 959 Column: 74 - 79
"...ge:AR-SA"></div></div>..." Line: 1614 Column: 864 - 869
"...ns-serif"></div></div>..." Line: 2269 Column: 1140 - 1145
"...ns-serif"></div></div>..." Line: 2942 Column: 629 - 634
"...ns-serif"></div></div>..." Line: 3597 Column: 843 - 848
"...ns-serif"></div></div>..." Line: 4892 Column: 148 - 153
"...ns-serif"></div></div>..."

Unclosed element “center”.

Line: 78 Column: 1 - 8
"...</table> <center><div i..."

Attribute “about” not allowed on element “div” at this point.

Line: 273 Column: 1 - 140
"... <div id="node-825" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/825" typeof="sioc:Item foaf:Document"> <div ..." Line: 928 Column: 1 - 140
"...> </div> <div id="node-824" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/824" typeof="sioc:Item foaf:Document"> <div ..." Line: 945 Column: 1 - 140
"...> </div> <div id="node-823" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/823" typeof="sioc:Item foaf:Document"> <div ..." Line: 970 Column: 1 - 140
"...> </div> <div id="node-821" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/821" typeof="sioc:Item foaf:Document"> <div ..." Line: 1625 Column: 1 - 140
"...> </div> <div id="node-820" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/820" typeof="sioc:Item foaf:Document"> <div ..." Line: 2280 Column: 1 - 140
"...> </div> <div id="node-819" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/819" typeof="sioc:Item foaf:Document"> <div ..." Line: 2297 Column: 1 - 140
"...> </div> <div id="node-818" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/818" typeof="sioc:Item foaf:Document"> <div ..." Line: 2953 Column: 1 - 140
"...> </div> <div id="node-816" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/816" typeof="sioc:Item foaf:Document"> <div ..." Line: 3608 Column: 1 - 140
"...> </div> <div id="node-815" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/815" typeof="sioc:Item foaf:Document"> <div ..." Line: 4903 Column: 1 - 140
"...> </div> <div id="node-814" class="node node-aktualita node-promoted node-sticky node-teaser" about="/www/node/814" typeof="sioc:Item foaf:Document"> <div ..."

Attribute “datatype” not allowed on element “h2” at this point.

Line: 277 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 932 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 949 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 974 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 1629 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 2284 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 2301 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 2957 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 3612 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..." Line: 4907 Column: 1 - 59
"...article"> <h2 class="art-postheader" property="dc:title" datatype=""><a hre..."

Unclosed element “span”.

Line: 917 Column: 849 - 937
"...:.0001pt"><span style="font-size:10.0pt;line-height:107%;font-family:"Arial",sans-serif"></div>..." Line: 959 Column: 145 - 73
"...justify;"><span style="font-size:10.0pt;line-height:107%;font-family: "Arial",sans-serif;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin; mso-ansi-language:CS;mso-fareast-language:EN-US;mso-bidi-language:AR-SA"></div>..." Line: 1614 Column: 775 - 863
"...:.0001pt"><span style="font-size:10.0pt;line-height:107%;font-family:"Arial",sans-serif"></div>..." Line: 2269 Column: 1051 - 1139
"...justify;"><span style="font-size:10.0pt;line-height:107%;font-family:"Arial",sans-serif"></div>..." Line: 2942 Column: 557 - 628
"...justify;"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"></div>..." Line: 3597 Column: 754 - 842
"...:.0001pt"><span style="font-size:10.0pt;line-height:107%;font-family:"Arial",sans-serif"></div>..." Line: 4892 Column: 76 - 147
"...nd:white"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"></div>..."

Duplicate ID “ispopBanner”.

Line: 5011 Column: 1 - 22
"... </div> <div id="ispopBanner"> <a..."

Warnings

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

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

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

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

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

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

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

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

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

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

Line: 60 Column: 5 - 57
"...> <script language="javascript" type="text/javascript"> func..."

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

A table row was 6 columns wide and exceeded the column count established by the first row (5).

Line: 121 Column: 178 - 9
"...></a></td> </tr> </tab..."

The first occurrence of ID “ispopBanner” was here.

Line: 5008 Column: 1 - 22
"..."> <div id="ispopBanner"> <a..."

This document appears to be written in Czech. Consider adding “lang="cs"” (or variant) to the “html” start tag.

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cenia.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.

cenia.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.

CENIA.CZ Česká informační agentura životního prostředí

cenia.cz Website Information

Advertisement

cenia.cz Alexa Rank

cenia.cz whois

cenia.cz server information

Servers Location

cenia.cz desktop page speed rank

cenia.cz Desktop Speed Test Quick Summary

priority - 292Optimize images

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

Optimize the following images to reduce their size by 2.8MiB (94% reduction).

priority - 23Leverage 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 - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 10 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 3Avoid 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.

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 5.9KiB (53% reduction).

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 2.5KiB (27% reduction).

cenia.cz Desktop Resource Breakdown

cenia.cz mobile page speed rank

cenia.cz Mobile Speed Test Quick Summary

priority - 290Optimize images

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

Optimize the following images to reduce their size by 2.8MiB (93% reduction).

priority - 34Leverage 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 - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 10 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

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.

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 5.9KiB (53% reduction).

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 2.5KiB (27% reduction).

cenia.cz Mobile Resource Breakdown

cenia.cz mobile page usability

cenia.cz 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 - 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.

priority - 3Size 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.

cenia.cz HTML validation

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

Attribute “xmlns:content” not allowed here.

Attribute “xmlns:dc” not allowed here.

Attribute “xmlns:foaf” not allowed here.

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:rdfs” not allowed here.

Attribute “xmlns:sioc” not allowed here.

Attribute “xmlns:sioct” not allowed here.

Attribute “xmlns:skos” not allowed here.

Attribute “xmlns:xsd” not allowed here.

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

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Stray start tag “head”.

Attribute “name” not allowed on element “meta” at this point.

Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.

Stray end tag “meta”.