scienceworld.cz Website Information

Daily Unique Visits: 1,356

Daily Page Views: 2,712

Income Per Day: $8

Estimated Value: $1,920

This website is located in Czech Republic and is using following IP address 31.15.13.31. See the complete list of popular websites hosted in Czech Republic.

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

Website scienceworld.cz is using the following name servers:

ns.monty.cz
ns3.monty.cz
ns2.monty.cz

and is probably hosted by ACTIVE 24. See the full list of other websites hosted by ACTIVE 24.

The highest website scienceworld.cz position in Alexa rank database was 51932 and the lowest rank position was 998197. Current position of scienceworld.cz in Alexa rank database is 528922.

Desktop speed score of scienceworld.cz (79/100) is better than the results of 67.91% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of scienceworld.cz (97/100) is better than the results of 49.9% of other sites and means that the page is mobile-friendly.

Mobile speed score of scienceworld.cz (72/100) is better than the results of 79.79% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

scienceworld.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.

scienceworld.cz whois

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scienceworld.cz server information

Servers Location

scienceworld.cz desktop page speed rank

Last tested: 2018-12-30

Desktop Speed Medium

79/100

scienceworld.cz Desktop Speed Test Quick Summary

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scienceworld.cz Desktop Resource Breakdown

Total Resources	64
Number of Hosts	8
Static Resources	54
JavaScript Resources	27
CSS Resources	9

scienceworld.cz mobile page speed rank

Last tested: 2018-12-30

Mobile Speed Medium

72/100

scienceworld.cz Mobile Speed Test Quick Summary

priority - 34Avoid landing page redirects

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priority - 3Reduce server response time

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priority - 1Optimize images

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priority - 0Minify HTML

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scienceworld.cz Mobile Resource Breakdown

Total Resources	16
Number of Hosts	2
Static Resources	13

scienceworld.cz mobile page usability

Last tested: 2018-12-30

Mobile Usability Good

97/100

scienceworld.cz Mobile Usability Test Quick Summary

priority - 2Size 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="">PRO MOBIL</a> and 2 others are close to other tap targets.

The tap target <a href="https://www.sc…eziva-priroda/">Neživá příroda</a> and 2 others are close to other tap targets.

The tap target <a href="/aktuality"></a> is close to 1 other tap targets.
The tap target <a href="https://www.sc…ory/aktuality/">všechny novinky</a> is close to 1 other tap targets.
The tap target <a href="#top"></a> is close to 1 other tap targets.

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.

scienceworld.cz HTML validation

Errors

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

Line: 1 Column: 1 - 109
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html..."

Attribute “xmlns:fb” not allowed here.

Line: 2 Column: 110 - 99
"...rict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="cs" lang="cs" xmlns:fb="http://ogp.me/ns/fb#"> <..."

Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.

Line: 6 Column: 9 - 55
"...> <meta http-equiv="imagetoolbar" content="no" /> ..."

Bad value “handheld” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Line: 8 Column: 13 - 101
"... <link rel="alternate" media="handheld" href="www.scienceworld.cz/?switch_theme=mobile" /> ..."

Bad value “cache-control” for attribute “http-equiv” on element “meta”.

Line: 10 Column: 13 - 77
"... <meta http-equiv="cache-control" content="max-age=900, public" /> ..."

Bad value “bookmark icon” for attribute “rel” on element “link”: The string “bookmark” is not a registered keyword.

Line: 36 Column: 13 - 122
"... <link rel="bookmark icon" href="https://www.scienceworld.cz/wp-content/themes/scienceworld/gfx/favicon.ico" /> ..."

Bad value “” for attribute “action” on element “form”: Must be non-empty.

Line: 102 Column: 29 - 58
"... <form action="" method="post"> ..."

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

Line: 123 Column: 58 - 120
"...s="menu"> <a href="https://www.scienceworld.cz/category/neziva-priroda/">Neživá..." Line: 124 Column: 4 - 60
"... </li> | <a href="https://www.scienceworld.cz/category/biologie/">Biolog..." Line: 125 Column: 4 - 58
"... </li> | <a href="https://www.scienceworld.cz/category/clovek/">Člověk..." Line: 126 Column: 4 - 63
"... </li> | <a href="https://www.scienceworld.cz/category/technologie/">Techno..." Line: 127 Column: 4 - 57
"... </li> | <a href="https://www.scienceworld.cz/category/videa/">Videa<..." Line: 128 Column: 4 - 59
"... </li> | <a href="https://www.scienceworld.cz/category/ostatni/">Ostatn..."

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

Line: 123 Column: 140 - 144
"...íroda</a> </li> | <a..." Line: 124 Column: 74 - 78
"...logie</a> </li> | <a..." Line: 125 Column: 70 - 74
"...lověk</a> </li> | <a..." Line: 126 Column: 80 - 84
"...logie</a> </li> | <a..." Line: 127 Column: 68 - 72
"...Videa</a> </li> | <a..." Line: 128 Column: 72 - 76
"...tatní</a> </li> </ul>..."

Text not allowed in element “ul” in this context.

Line: 124 Column: 145 - 3
"...</a> </li> | <a hre..." Line: 125 Column: 79 - 3
"...</a> </li> | <a hre..." Line: 126 Column: 75 - 3
"...</a> </li> | <a hre..." Line: 127 Column: 85 - 3
"...</a> </li> | <a hre..." Line: 128 Column: 73 - 3
"...</a> </li> | <a hre..."

Attribute “x-webkit-speech” not allowed on element “input” at this point.

Line: 135 Column: 37 - 122
"... <input id="search_input" class="text" name="s" value="" type="text" x-webkit-speech /> ..."

Duplicate attribute “width”.

Line: 159 Column: - 210
"...m Egyptě" width="400" height="..." Line: 168 Column: - 196
"...ii mysli" width="70" height="7..." Line: 181 Column: - 205
"...ěj morče" width="70" height="7..." Line: 435 Column: - 206
"...ouštědla" width="70" height="7..." Line: 442 Column: - 197
"...krystaly" width="70" height="7..." Line: 449 Column: - 192
"... arašídy" width="70" height="7..."

Duplicate attribute “height”.

Line: 159 Column: - 223
"...th="400" height="200" /> ..." Line: 168 Column: - 208
"...dth="70" height="70" /> ..." Line: 181 Column: - 217
"...dth="70" height="70" /> ..." Line: 435 Column: - 218
"...dth="70" height="70" /> ..." Line: 442 Column: - 209
"...dth="70" height="70" /> ..." Line: 449 Column: - 204
"...dth="70" height="70" /> ..."

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

Line: 226 Column: 13 - 15
"... <p><a hre..." Line: 302 Column: 51 - 53
"...articles"><p> ..."

Bad value “infotab_1” for attribute “rel” on element “a”: The string “infotab_1” is not a registered keyword.

Line: 331 Column: 28 - 85
"...="active"><a style="padding-right: 2.0em;" href="#" rel="infotab_1">anketa..."

Bad value “infotab_2” for attribute “rel” on element “a”: The string “infotab_2” is not a registered keyword.

Line: 332 Column: 22 - 49
"... class=""><a href="#" rel="infotab_2">posled..."

Bad value “infotab_3” for attribute “rel” on element “a”: The string “infotab_3” is not a registered keyword.

Line: 333 Column: 22 - 49
"... class=""><a href="#" rel="infotab_3">nejčte..."

Bad value “infotab_4” for attribute “rel” on element “a”: The string “infotab_4” is not a registered keyword.

Line: 334 Column: 22 - 49
"... class=""><a href="#" rel="infotab_4">Sociál..."

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

Line: 397 Column: 21 - 82
"... <table width="220" border="0" cellspacing="0" cellpadding="0"> ..."

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

Line: 397 Column: 21 - 82
"... <table width="220" border="0" cellspacing="0" cellpadding="0"> ..."

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

Line: 397 Column: 21 - 82
"... <table width="220" border="0" cellspacing="0" cellpadding="0"> ..."

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

Line: 397 Column: 21 - 82
"... <table width="220" border="0" cellspacing="0" cellpadding="0"> ..."

Bad element name “fb:like-box”: Code point “U+003A” is not allowed

Line: 454 Column: 9 - 176
"...> <fb:like-box href="http://www.facebook.com/scienceworld" width="300" show_faces="true" stream="false" header="false" fb-xfbml-state="rendered" class="fb_iframe_widget"><span ..."

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

Line: 454 Column: 220 - 844
"...: 300px;"><iframe id="f2842fcc1" name="f3b0747a94" scrolling="no" style="border: none; overflow: hidden; height: 258px; width: 300px;" class="fb_ltr" src="http://www.facebook.com/plugins/likebox.php?api_key=239787459411978&locale=cs_CZ&sdk=joey&channel=http%3A%2F%2Fstatic.ak.facebook.com%2Fconnect%2Fxd_arbiter.php%3Fversion%3D17%23cb%3Df15d257258%26origin%3Dhttp%253A%252F%252Fscienceworld.cz%252Ff14404f8b%26domain%3Dscienceworld.cz%26relation%3Dparent.parent&height=258&header=false&show_faces=true&stream=false&width=300&href=http%3A%2F%2Fwww.facebook.com%2Fscienceworld&colorscheme=light"></ifra..."

Warnings

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

Line: 2 Column: 110 - 99
"...rict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="cs" lang="cs" xmlns:fb="http://ogp.me/ns/fb#"> <..."

Element name “fb:like-box” cannot be represented as XML 1.0.

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scienceworld.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.

scienceworld.cz TRACEROUTE

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SCIENCEWORLD.CZ Science World.cz | Novinky ze světa vědy a techniky: technologie, neživá příroda, člověk, biologie

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scienceworld.cz Desktop Speed Test Quick Summary

priority - 9Avoid landing page redirects

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

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

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

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Optimize CSS Delivery of the following:

priority - 4Reduce server response time

In our test, your server responded in 0.58 seconds.

priority - 2Optimize images

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

Optimize the following images to reduce their size by 22.1KiB (26% reduction).

priority - 1Leverage browser caching

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priority - 0Minify JavaScript

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scienceworld.cz Mobile Speed Test Quick Summary

priority - 34Avoid landing page redirects

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

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priority - 3Reduce server response time

In our test, your server responded in 0.43 seconds.

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scienceworld.cz Mobile Usability Test Quick Summary

priority - 2Size 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 - 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.

scienceworld.cz HTML validation

Errors

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

Attribute “xmlns:fb” not allowed here.

Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.

Bad value “handheld” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

Bad value “cache-control” for attribute “http-equiv” on element “meta”.

Bad value “bookmark icon” for attribute “rel” on element “link”: The string “bookmark” is not a registered keyword.

Bad value “” for attribute “action” on element “form”: Must be non-empty.

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

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

Text not allowed in element “ul” in this context.

Attribute “x-webkit-speech” not allowed on element “input” at this point.

Duplicate attribute “width”.

Duplicate attribute “height”.

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

Bad value “infotab_1” for attribute “rel” on element “a”: The string “infotab_1” is not a registered keyword.

Bad value “infotab_2” for attribute “rel” on element “a”: The string “infotab_2” is not a registered keyword.

Bad value “infotab_3” for attribute “rel” on element “a”: The string “infotab_3” is not a registered keyword.

Bad value “infotab_4” for attribute “rel” on element “a”: The string “infotab_4” is not a registered keyword.

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

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

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

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

Bad element name “fb:like-box”: Code point “U+003A” is not allowed