central-group.cz Website Information

Daily Unique Visits: 808

Daily Page Views: 1,616

Income Per Day: $5

Estimated Value: $1,200

This website is located in Czech Republic and is using following IP address 194.213.194.191. See the complete list of popular websites hosted in Czech Republic.

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

Website central-group.cz is using the following name servers:

ns.forpsi.cz
ns.forpsi.it
ns.forpsi.net

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 central-group.cz position in Alexa rank database was 28885 and the lowest rank position was 999350. Current position of central-group.cz in Alexa rank database is 887261.

Desktop speed score of central-group.cz (63/100) is better than the results of 39.87% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of central-group.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 central-group.cz (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

central-group.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.

central-group.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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central-group.cz server information

Servers Location

central-group.cz desktop page speed rank

Last tested: 2019-01-22

Desktop Speed Bad

63/100

central-group.cz Desktop Speed Test Quick Summary

priority - 41Leverage 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:

http://www.central-group.cz/Css/SCss/hp.css (expiration not specified)
http://www.central-group.cz/Css/SCss/jssor.js (expiration not specified)
http://www.central-group.cz/Css/SCss/jssor.slider.js (expiration not specified)
http://www.central-group.cz/Css/SCss/mapy-rozcestnik.css (expiration not specified)
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http://www.central-group.cz/Uloziste/9d/9de8f5b4-d…-839f-50057e1dea8d.png (expiration not specified)
http://www.central-group.cz/css/MinifiedHomepageCss.css (expiration not specified)
http://www.central-group.cz/css/Tcss/MinifiedRsMasterPageCss.css (expiration not specified)
http://www.central-group.cz/img/bg-hl-menu-byt.png (expiration not specified)
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http://www.central-group.cz/img/pozadi-rychle-odkazy.gif (expiration not specified)
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http://www.central-group.cz/img/pozadi_spodni_left.gif (expiration not specified)
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http://www.central-group.cz/img/pravy-sl-bg.png (expiration not specified)
http://www.central-group.cz/img/pravy-sl-blok-bg.png (expiration not specified)
http://www.central-group.cz/img/prostredek_pozadi_2.png (expiration not specified)
http://www.central-group.cz/img/rd-tecka1.gif (expiration not specified)
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http://www.central-group.cz/img/rd-tecka3.gif (expiration not specified)
http://www.central-group.cz/img/sitemap.gif (expiration not specified)
http://www.central-group.cz/img/tisk-logo.gif (expiration not specified)
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http://www.central-group.cz/img/vyhledavani-tecky.gif (expiration not specified)
http://www.central-group.cz/js/MinifiedMasterPageJs.js (expiration not specified)
http://www.central-group.cz/js/definity-lib.js (expiration not specified)
http://www.central-group.cz/js/jquery-ui-i18n-definity.js (expiration not specified)
http://www.central-group.cz/js/superfish.js (expiration not specified)
http://www.central-group.cz/uloziste/06/067417c1-8…-8771-c546e64df003.jpg (expiration not specified)
http://www.central-group.cz/uloziste/12/12faa436-3…-859f-f0b696c42faf.png (expiration not specified)
http://www.central-group.cz/uloziste/14/14292f8b-a…-b050-276a07127940.jpg (expiration not specified)
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http://www.central-group.cz/uloziste/34/34892a7a-7…-8e74-ffe238ca314c.png (expiration not specified)
http://www.central-group.cz/uloziste/47/475e730a-b…-af97-b72ee0e5d7c6.gif (expiration not specified)
http://www.central-group.cz/uloziste/71/7139e220-1…-a1d8-0f5686965444.jpg (expiration not specified)
http://www.central-group.cz/uloziste/78/780a8752-7…-96e9-98ddffb6ea09.jpg (expiration not specified)
http://www.central-group.cz/uloziste/b7/b7f695b4-a…-bb0b-3717cd627ddd.gif (expiration not specified)
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http://www.googletagmanager.com/gtm.js?id=GTM-NN4NKT (16.2 minutes)
http://connect.facebook.net/en_US/fbevents.js (20 minutes)
http://stats.g.doubleclick.net/dc.js (2 hours)
http://api.myx.cz/js/myx.js (4 hours)

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
http://www.central-group.cz/js/MinifiedMasterPageJs.js
http://www.central-group.cz/js/jquery-ui-i18n-definity.js
http://www.central-group.cz/js/superfish.js
http://www.central-group.cz/js/definity-lib.js
http://www.central-group.cz/WebResource.axd?d=J_J0…1&t=635403781169127025
http://www.central-group.cz/Css/SCss/jssor.js
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Optimize CSS Delivery of the following:

http://www.central-group.cz/css/Tcss/MinifiedRsMasterPageCss.css
http://www.central-group.cz/Css/SCss/hp.css
http://www.central-group.cz/css/MinifiedHomepageCss.css

priority - 6Optimize images

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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.

http://central-group.cz/
http://www.central-group.cz//default.aspx?page=Homepage&jv=1
http://www.central-group.cz/

priority - 2Minify 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 19.9KiB (32% reduction).

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Minifying http://www.central-group.cz/Css/SCss/jssor.js could save 6.3KiB (35% reduction) after compression.
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Minifying http://www.central-group.cz/js/definity-lib.js could save 1.6KiB (24% reduction) after compression.

priority - 1Minify 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 5.2KiB (11% reduction).

Minifying http://www.central-group.cz/ could save 5.2KiB (11% reduction) after compression.

central-group.cz Desktop Resource Breakdown

Total Resources	101
Number of Hosts	15
Static Resources	88
JavaScript Resources	16
CSS Resources	5

central-group.cz mobile page speed rank

Last tested: 2019-01-22

Mobile Speed Bad

59/100

central-group.cz Mobile Speed Test Quick Summary

priority - 45Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://central-group.cz/
http://www.central-group.cz//default.aspx?page=Homepage&jv=1
http://www.central-group.cz/
http://www.central-group.cz/pages.aspx?page=m-hp&jv=1
http://m.central-group.cz/

priority - 16Eliminate 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.

Remove render-blocking JavaScript:

http://m.central-group.cz/analytics.js

Optimize CSS Delivery of the following:

http://m.central-group.cz/Css/SCss/Mobil.css

priority - 13Leverage 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:

http://m.central-group.cz/Css/SCss/Mobil.css (expiration not specified)
http://m.central-group.cz/analytics.js (expiration not specified)
http://m.central-group.cz/uloziste/b4/b48beff4-382…-9f31-165a4908368d.jpg (expiration not specified)
http://www.central-group.cz/Uloziste/2d/2db5f99d-1…-8fde-be633d5634b0.png (expiration not specified)
http://www.central-group.cz/uloziste/19/19c3fe61-f…-bab9-009a22287c79.png (expiration not specified)
http://www.central-group.cz/uloziste/22/22839a6f-4…-afa4-35ace0ed86a4.png (expiration not specified)
http://www.central-group.cz/uloziste/28/28e690e2-c…-854a-bd7a0e124636.png (expiration not specified)
http://www.central-group.cz/uloziste/40/402ca3b9-0…-9046-dfd49bb4789c.png (expiration not specified)
http://www.central-group.cz/uloziste/44/4477340d-6…-8283-3aae0e64ff55.png (expiration not specified)
http://www.central-group.cz/uloziste/5e/5ee42b9d-b…-80ec-54084ab43868.gif (expiration not specified)
http://www.central-group.cz/uloziste/60/60b43d3e-5…-a31a-dbbc171d6021.png (expiration not specified)
http://www.central-group.cz/uloziste/63/63cf7943-0…-bf98-31f805da0582.png (expiration not specified)
http://www.central-group.cz/uloziste/bf/bf5b7f78-c…-8b45-25c66f9ec1b0.png (expiration not specified)
http://www.central-group.cz/uloziste/c0/c085f6d4-9…-bd7c-9049c10f3749.png (expiration not specified)
http://www.central-group.cz/uloziste/c2/c209e3d1-4…-a18d-43df23dda338.png (expiration not specified)
http://www.central-group.cz/uloziste/d9/d9af39ff-c…-a716-dde346beb12c.jpg (expiration not specified)
http://www.google-analytics.com/ga.js (2 hours)

priority - 1Optimize images

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Optimize the following images to reduce their size by 11.9KiB (9% reduction).

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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 583B (16% reduction).

Minifying http://m.central-group.cz/Css/SCss/Mobil.css could save 583B (16% reduction) after compression.

central-group.cz Mobile Resource Breakdown

Total Resources	23
Number of Hosts	4
Static Resources	17
JavaScript Resources	2
CSS Resources	1

central-group.cz mobile page usability

Last tested: 2019-01-22

Mobile Usability Good

99/100

central-group.cz Mobile Usability Test Quick Summary

priority - 0Configure the viewport

Your page uses an XHTML Mobile doctype declaration, which instructs browsers that your page is optimized for mobile and should render properly on all devices.

central-group.cz HTML validation

Errors

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

Line: 2 Column: 1 - 110
"... <!DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN' 'http://www.w3.org/TR/html4/loose.dtd'> ..."

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

Line: 14 Column: 1 - 50
"...=UTF-8" > <meta http-equiv="Content-Language" content="cs" > <meta..."

Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.

Line: 15 Column: 1 - 66
"...nt="cs" > <meta http-equiv="Content-Script-Type" content="text/javascript" > <meta..."

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

Line: 16 Column: 1 - 58
"...script" > <meta http-equiv="Content-Style-Type" content="text/css" > <meta..."

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

Line: 290 Column: 97 - 128
"...ss="text"><font style="font-weight: 600;">BYTY</..." Line: 337 Column: 548 - 569
"...ss="text"><font color="#990000">Přehle..." Line: 380 Column: 93 - 124
"...ss="text"><font style="font-weight: 600;">RODINN..." Line: 431 Column: 105 - 136
"...ss="text"><font style="font-weight: 600;">KOMERČ..." Line: 436 Column: 165 - 213
"...>ATELIÉRY <font color="#878a8c" style="padding-left:10px;"><stron..." Line: 439 Column: 171 - 219
"... PROSTORY<font color="#878a8c" style="padding-left:10px;"><strong..." Line: 442 Column: 176 - 224
"...KANCELÁŘE<font color="#878a8c" style="padding-left:10px;"><strong..." Line: 461 Column: 133 - 154
"...ss="text"><font color="#ffffff"><stron..." Line: 467 Column: 187 - 234
"...s="text"><font color="#990000" style=" font-size: 11px;"><strong..." Line: 467 Column: 357 - 422
"...px;"><br><font color="#990000" style="font-size: 11px; line-height: 10px;">–..." Line: 487 Column: 153 - 181
"...ss="text"><font style="color:#113761;">Textov..." Line: 490 Column: 148 - 176
"...ss="text"><font style="color:#113761;">Nemovi..." Line: 1311 Column: 78 - 99
"...prostory <font color="#878a8c">(prodej..." Line: 1312 Column: 71 - 92
"...>Ateliéry <font color="#878a8c">(prode..." Line: 1316 Column: 83 - 104
"...anceláře <font color="#878a8c">(pronáj..."

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

Line: 292 Column: 189 - 226
"...s="sufix"><img src="/img/cg/lupa-ico-menu2.png"></span..." Line: 298 Column: 261 - 291
"...="sufix"><img src="/img/cg/premium.png"></span>..." Line: 301 Column: 243 - 273
"...="sufix"><img src="/img/cg/premium.png"></span>..." Line: 307 Column: 260 - 290
"...="sufix"><img src="/img/cg/premium.png"></span>..." Line: 467 Column: 291 - 352
"...g></font><img src="/img/cg/byty-vlepka.jpg" style="margin-left: 56px;"><br><fo..."

End tag “font” violates nesting rules.

Line: 461 Column: 176 - 182
"...É PROJEKTY</font></stro..."

No “strong” element in scope but a “strong” end tag seen.

Line: 461 Column: 183 - 191
"...KTY</font></strong></span..."

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

Line: 713 Column: 5 - 23
"...cka"> <table width="590"> ..."

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

Line: 716 Column: 81 - 62
"...p" > </td> <td valign="top" class="cerna-linka-cela"> ..." Line: 723 Column: 60 - 86
"...hod. </td> <td valign="top" class="cerna-linka-cela" style="font-size: 9px;"> ..."

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

Line: 751 Column: 2 - 104
"...FPMap0"> <area shape="RECT" coords="115,240,298,299" href="/page.aspx?page=zasilani-novinek&jv=1" title="" > <are..." Line: 752 Column: 2 - 118
"...tle="" > <area shape="RECT" coords="220,0,299,26" onclick="javascript:zobrazfunct('1');" href="javascript:void(0);" title="" > </map..."

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

Line: 757 Column: 1 - 7
"...> </div> <style> .upou..." Line: 858 Column: 1 - 7
"...kejte... <style> .ajax..."

Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).

Line: 1271 Column: - 5
"...lass="Rd"> <!--<li><a title=""..." Line: 1273 Column: - 5
"...s</a></li> <!--<li style="colo..." Line: 1278 Column: - 5
"...deji</li> <!--<li><a title=""..." Line: 1282 Column: - 5
"...eji</li> <!--<li><a title=""..." Line: 1295 Column: - 5
"...š</a></li> <!--<li><a ti..." Line: 1296 Column: - 5
"...s</a></li> <!--<li><a title=""..." Line: 1297 Column: - 5
"...y</a></li> <!--<li><a title=""..." Line: 1298 Column: - 5
"...e</a></li> <!--<li><a title=""..." Line: 1301 Column: - 5
"...y</a></li> <!--<li><a title=""..."

Duplicate ID “paticka-kopirovat-odkaz”.

Line: 1466 Column: 5 - 103
"...abel> <input type="text" name="paticka-kopirovat-odkaz" readonly="readonly" id="paticka-kopirovat-odkaz"> </div..."

Element “option” without attribute “label” must not be empty.

Line: 1566 Column: 39 - 47
"... value=""></option> <opt..."

Attribute “optiongroup” not allowed on element “option” at this point.

Line: 1568 Column: 2 - 58
"...nzerce"> <option value="Google" OptionGroup="internetová inzerce">Google..." Line: 1569 Column: 2 - 61
".../option> <option value="Seznam.cz" OptionGroup="internetová inzerce">Seznam..." Line: 1570 Column: 2 - 60
".../option> <option value="Facebook" OptionGroup="internetová inzerce">Facebo..." Line: 1571 Column: 2 - 60
".../option> <option value="iDnes.cz" OptionGroup="internetová inzerce">iDnes...." Line: 1572 Column: 2 - 62
".../option> <option value="Novinky.cz" OptionGroup="internetová inzerce">Novink..." Line: 1573 Column: 2 - 62
".../option> <option value="Centrum.cz" OptionGroup="internetová inzerce">Centru..." Line: 1574 Column: 2 - 63
".../option> <option value="Aktuálně.cz" OptionGroup="internetová inzerce">Aktu&#..." Line: 1575 Column: 2 - 60
".../option> <option value="iHned.cz" OptionGroup="internetová inzerce">iHned...." Line: 1576 Column: 2 - 68
".../option> <option value="Reality.iDnes.cz" OptionGroup="internetová inzerce">Realit..." Line: 1577 Column: 2 - 63
".../option> <option value="Sreality.cz" OptionGroup="internetová inzerce">Sreali..." Line: 1578 Column: 2 - 65
".../option> <option value="Realitymix.cz" OptionGroup="internetová inzerce">Realit..." Line: 1579 Column: 2 - 66
".../option> <option value="Bezrealitky.cz" OptionGroup="internetová inzerce">Bezrea..." Line: 1580 Column: 2 - 62
".../option> <option value="Reality.cz" OptionGroup="internetová inzerce">Realit..." Line: 1581 Column: 2 - 62
".../option> <option value="jiné/nevím" OptionGroup="internetová inzerce">jin&#2..." Line: 1583 Column: 2 - 55
"...nzerce"> <option value="MF DNES" OptionGroup="tištěná inzerce">MF DNE..." Line: 1584 Column: 2 - 66
".../option> <option value="Hospodářské noviny" OptionGroup="tištěná inzerce">Hospod..." Line: 1585 Column: 2 - 51
".../option> <option value="E15" OptionGroup="tištěná inzerce">E15</o..." Line: 1586 Column: 2 - 53
".../option> <option value="Metro" OptionGroup="tištěná inzerce">Metro<..." Line: 1587 Column: 2 - 53
".../option> <option value="Týden" OptionGroup="tištěná inzerce">T&#253..." Line: 1588 Column: 2 - 54
".../option> <option value="Ekonom" OptionGroup="tištěná inzerce">Ekonom..." Line: 1589 Column: 2 - 52
".../option> <option value="Euro" OptionGroup="tištěná inzerce">Euro</..." Line: 1590 Column: 2 - 54
".../option> <option value="Reflex" OptionGroup="tištěná inzerce">Reflex..." Line: 1591 Column: 2 - 54
".../option> <option value="Forbes" OptionGroup="tištěná inzerce">Forbes..." Line: 1592 Column: 2 - 60
".../option> <option value="Prémium Golf" OptionGroup="tištěná inzerce">Pr&#23..." Line: 1593 Column: 2 - 58
".../option> <option value="jiné/nevím" OptionGroup="tištěná inzerce">jin&#2..." Line: 1595 Column: 2 - 57
"...plochy"> <option value="billboard" OptionGroup="venkovní plochy">billbo..." Line: 1596 Column: 2 - 68
".../option> <option value="plakát v metru (CLV)" OptionGroup="venkovní plochy">plak&#..." Line: 1597 Column: 2 - 82
".../option> <option value="reklamní kostka u nákupního centra" OptionGroup="venkovní plochy">reklam..." Line: 1599 Column: 2 - 56
"...="jiné"> <option value="emailový newsletter" OptionGroup="jiné">emailo..." Line: 1600 Column: 2 - 42
".../option> <option value="rádio" OptionGroup="jiné">r&#225..." Line: 1601 Column: 2 - 55
".../option> <option value="doporučení známého" OptionGroup="jiné">doporu..." Line: 1602 Column: 2 - 53
".../option> <option value="zmínka v médiích" OptionGroup="jiné">zm&#23..." Line: 1603 Column: 2 - 51
".../option> <option value="bydlím v okolí" OptionGroup="jiné">bydl&#..." Line: 1604 Column: 2 - 52
".../option> <option value="veletrh/výstava" OptionGroup="jiné">veletr..." Line: 1605 Column: 2 - 55
".../option> <option value="znám CENTRAL GROUP" OptionGroup="jiné">zn&#22..."

No space between attributes.

Line: 1660 Column: - 80
"...id=GTM-TVDW2DQ"height="0" widt..." Line: 1672 Column: - 79
"...?id=GTM-NN4NKT"height="0" widt..."

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

Line: 1699 Column: 1 - 7
".../script> <style> #levy..."

The “aria-labelledby” attribute must point to an element in the same document.

Line: 1061 Column: 25 - 83
"... <ul class="dropdown-menu" aria-labelledby="dropdownCenyRd"> ..."

Warnings

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

Line: 699 Column: 130 - 268
"...title=""><img border="0" src="//www.central-group.cz/Uloziste/a3/a33d0616-bc6d-4ab6-a257-c59cd067004e.jpg" alt="Studentská architektonická soutěž" ></a> </..." Line: 702 Column: 87 - 248
"... title=""><img border="0" style="border: 0pt none; margin: -25px 0 0 20px;" src="/uloziste/e2/e2ce51dd-56f6-43e4-9732-8ed3ed4ce4cd.png" alt="Nadační fond pro zdraví dětí" ></a> <..." Line: 755 Column: 4 - 164
".../map> <img width="300" height="300" border="0" usemap="#FPMap0" alt="CENTRAL GROUP" src="//www.central-group.cz/Uloziste/df/dfb8782c-cd20-4bc2-bfd5-62197d76f9f3.jpg" > </di..."

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

Line: 882 Column: 9 - 35
"... <a name="vyhledavani-byty"></a> ..." Line: 1036 Column: 13 - 37
"... <a name="vyhledavani-rd"></a> ..."

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

Line: 1271 Column: - 5
"...lass="Rd"> <!--<li><a title=""..." Line: 1295 Column: - 5
"...š</a></li> <!--<li><a ti..." Line: 1296 Column: - 5
"...s</a></li> <!--<li><a title=""..."

The first occurrence of ID “paticka-kopirovat-odkaz” was here.

Line: 1383 Column: 5 - 103
"...abel> <input type="text" name="paticka-kopirovat-odkaz" readonly="readonly" id="paticka-kopirovat-odkaz"> </div..."

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

Line: 8 Column: 111 - 6
"...oose.dtd'> <html> <head..."

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central-group.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.

central-group.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.

CENTRAL-GROUP.CZ Central Group

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central-group.cz Desktop Speed Test Quick Summary

priority - 41Leverage 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 - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 6Optimize images

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

Optimize the following images to reduce their size by 49.5KiB (11% reduction).

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 - 2Minify 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 19.9KiB (32% reduction).

priority - 1Minify 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 5.2KiB (11% reduction).

central-group.cz Desktop Resource Breakdown

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central-group.cz Mobile Speed Test Quick Summary

priority - 45Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

priority - 16Eliminate 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.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 13Leverage 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 - 1Optimize images

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

Optimize the following images to reduce their size by 11.9KiB (9% 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 583B (16% reduction).

central-group.cz Mobile Resource Breakdown

central-group.cz mobile page usability

central-group.cz Mobile Usability Test Quick Summary

priority - 0Configure the viewport

Your page uses an XHTML Mobile doctype declaration, which instructs browsers that your page is optimized for mobile and should render properly on all devices.

central-group.cz HTML validation

Errors

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

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

Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.

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

The “font” 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.

End tag “font” violates nesting rules.

No “strong” element in scope but a “strong” end tag seen.

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

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

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

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

Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).

Duplicate ID “paticka-kopirovat-odkaz”.

Element “option” without attribute “label” must not be empty.

Attribute “optiongroup” not allowed on element “option” at this point.

No space between attributes.

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

The “aria-labelledby” attribute must point to an element in the same document.

Warnings

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

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

The first occurrence of ID “paticka-kopirovat-odkaz” was here.

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

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