stredniskoly.cz Website Information
Daily Unique Visits: 871
Daily Page Views: 1,742
Income Per Day: $5
Estimated Value: $1,200
This website is located in Czech Republic and is using following IP address 91.239.201.14. See the complete list of popular websites hosted in Czech Republic.
stredniskoly.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
Website stredniskoly.cz is using the following name servers:
- ns1.thinline.cz
- ns2.thinline.cz
- ns3.cesky-hosting.eu
and is probably hosted by PRO-ZETA a.s.. See the full list of other websites hosted by PRO-ZETA a.s..
The highest website stredniskoly.cz position in Alexa rank database was 24638 and the lowest rank position was 999754. Current position of stredniskoly.cz in Alexa rank database is 822928.
Desktop speed score of stredniskoly.cz (78/100) is better than the results of 65.98% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of stredniskoly.cz (68/100) is better than the results of 19.67% of other sites and means that the page is not mobile-friendly.
Mobile speed score of stredniskoly.cz (55/100) is better than the results of 43.86% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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stredniskoly.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.
stredniskoly.cz whois
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stredniskoly.cz server information
Servers Location
stredniskoly.cz desktop page speed rank
Last tested: 2019-01-18
Desktop Speed
Medium
78/100
stredniskoly.cz Desktop Speed Test Quick Summary
priority - 14Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://www.stredniskoly.cz/css/index.css?72
https://www.stredniskoly.cz/css/index-print.css?20
https://fonts.googleapis.com/css?family=Magra&subset=latin,latin-ext
https://www.stredniskoly.cz/css/index-print.css?20
https://fonts.googleapis.com/css?family=Magra&subset=latin,latin-ext
priority - 7Avoid 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://stredniskoly.cz/
http://www.stredniskoly.cz/
https://www.stredniskoly.cz/
http://www.stredniskoly.cz/
https://www.stredniskoly.cz/
priority - 4Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 41.8KiB (49% reduction).
Compressing https://ad.skoly-online.cz/image/banner/MKPR.jpg could save 29KiB (62% reduction).
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priority - 1Leverage 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:
https://connect.facebook.net/cs_CZ/all.js (20 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://ssl.google-analytics.com/ga.js (2 hours)
priority - 0Minify 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 667B (39% reduction).
Minifying https://connect.facebook.net/cs_CZ/all.js could save 667B (39% reduction) after compression.
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 452B (11% reduction).
Minifying https://www.stredniskoly.cz/css/index.css?72 could save 452B (11% reduction) after compression.
stredniskoly.cz Desktop Resource Breakdown
| Total Resources | 54 |
| Number of Hosts | 11 |
| Static Resources | 42 |
| JavaScript Resources | 16 |
| CSS Resources | 7 |
stredniskoly.cz mobile page speed rank
Last tested: 2019-01-18
Mobile Speed
Bad
55/100
stredniskoly.cz Mobile Speed Test Quick Summary
priority - 56Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://www.stredniskoly.cz/css/index.css?72
https://www.stredniskoly.cz/css/index-print.css?20
https://fonts.googleapis.com/css?family=Magra&subset=latin,latin-ext
https://www.stredniskoly.cz/css/index-print.css?20
https://fonts.googleapis.com/css?family=Magra&subset=latin,latin-ext
priority - 26Avoid 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://stredniskoly.cz/
http://www.stredniskoly.cz/
https://www.stredniskoly.cz/
http://www.stredniskoly.cz/
https://www.stredniskoly.cz/
priority - 4Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 41.8KiB (49% reduction).
Compressing https://ad.skoly-online.cz/image/banner/MKPR.jpg could save 29KiB (62% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v3/yX/r/Kvo5FesWVKX.png could save 6.8KiB (37% reduction).
Compressing https://www.stredniskoly.cz/image/index/skoly-online-male.png could save 4.1KiB (53% reduction).
Compressing https://www.stredniskoly.cz/image/loga-skol/small/25687344.png could save 819B (21% reduction).
Compressing https://www.stredniskoly.cz/image/loga-skol/small/26863782.png could save 637B (13% reduction).
Compressing https://www.stredniskoly.cz/image/loga-skol/small/25607375.png could save 442B (11% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v3/yX/r/Kvo5FesWVKX.png could save 6.8KiB (37% reduction).
Compressing https://www.stredniskoly.cz/image/index/skoly-online-male.png could save 4.1KiB (53% reduction).
Compressing https://www.stredniskoly.cz/image/loga-skol/small/25687344.png could save 819B (21% reduction).
Compressing https://www.stredniskoly.cz/image/loga-skol/small/26863782.png could save 637B (13% reduction).
Compressing https://www.stredniskoly.cz/image/loga-skol/small/25607375.png could save 442B (11% reduction).
priority - 1Leverage 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:
https://connect.facebook.net/cs_CZ/all.js (20 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://ssl.google-analytics.com/ga.js (2 hours)
priority - 0Minify 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 667B (39% reduction).
Minifying https://connect.facebook.net/cs_CZ/all.js could save 667B (39% reduction) after compression.
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 452B (11% reduction).
Minifying https://www.stredniskoly.cz/css/index.css?72 could save 452B (11% reduction) after compression.
stredniskoly.cz Mobile Resource Breakdown
| Total Resources | 53 |
| Number of Hosts | 11 |
| Static Resources | 41 |
| JavaScript Resources | 15 |
| CSS Resources | 7 |
stredniskoly.cz mobile page usability
Last tested: 2019-01-18
Mobile Usability
Medium
68/100
stredniskoly.cz Mobile Usability Test Quick Summary
priority - 26Use 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.
To se mi líbí renders only 4 pixels tall (11 CSS pixels).a prohlédněte…přátelům líbí. and 1 others render only 4 pixels tall (11 CSS pixels).Zaregistrujte se renders only 4 pixels tall (11 CSS pixels).Dny otevřených dveří and 5 others render only 7 pixels tall (19 CSS pixels).Hledej renders only 6 pixels tall (16 CSS pixels).Databáze škol ke stažení and 4 others render only 5 pixels tall (14 CSS pixels).Najdi si nejvh…střední školu and 2 others render only 5 pixels tall (14 CSS pixels).Další dny otevřených dveří and 2 others render only 5 pixels tall (14 CSS pixels).Kdo si ve škole víc vytrpí? and 2 others render only 5 pixels tall (14 CSS pixels).1322 středních…ázií a učilišť and 2 others render only 5 pixels tall (14 CSS pixels).Nástavbové studium and 1 others render only 5 pixels tall (14 CSS pixels).Nejbližší dny…vřených dveří: renders only 5 pixels tall (14 CSS pixels).18.1. and 3 others render only 5 pixels tall (13 CSS pixels).MICHAEL – Stře…orby, s. r. o. and 12 others render only 5 pixels tall (13 CSS pixels).Beranových 140…ha 9 - Letňany and 6 others render only 5 pixels tall (13 CSS pixels).65% and 1 others render only 5 pixels tall (13 CSS pixels).Celkem 25451 hlasů renders only 5 pixels tall (13 CSS pixels).Stredniskoly.cz renders only 7 pixels tall (18 CSS pixels).5,223 likes renders only 5 pixels tall (12 CSS pixels).Like Page renders only 5 pixels tall (12 CSS pixels).Share renders only 4 pixels tall (11 CSS pixels).Be the first o…s to like this renders only 5 pixels tall (12 CSS pixels).Mateřské školy and 5 others render only 5 pixels tall (14 CSS pixels).© 2002–2019, and 1 others render only 5 pixels tall (13 CSS pixels).Školy Online renders only 5 pixels tall (13 CSS pixels).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 - 9Size 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="/">Úvod</a> and 1 others are close to other tap targets.The tap target
<a href="/prazdniny.html">Prázdniny</a> and 4 others are close to other tap targets.The tap target
<a href="/obory/?typ_studia%5B%5D=ns">Nástavbové studium</a> and 1 others are close to other tap targets.The tap target
<a href="/skola/600013243.html">Obchodní akade…ová organizace</a> and 12 others are close to other tap targets.The tap target
<a href="/dny-otevrenych-dveri/">Další dny otevřených dveří</a> is close to 1 other tap targets.The tap target
<a href="/skola/600004996.html"></a> and 6 others are close to other tap targets.The tap target
<img src="https://sconte…c6&oe=5CB60CF5" class="_1drn _-s img"> is close to 1 other tap targets.The tap target
<a href="/o-webu.html">O webu</a> and 5 others are close to other tap targets.priority - 3Size 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 990 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:
The element
The element
The element
The element
The element
<div id="fb-like" class="fb-like fb_ifr…e_widget_fluid"></div> falls outside the viewport.The element
<div id="lista-hneda">Úvod Školy Obo…ol Hledej</div> falls outside the viewport.The element
<iframe src="https://ad.sko…0_bank_swf.php"> falls outside the viewport.The element
<div class="bilyobal">Partneři serve…em 25451 hlasů</div> falls outside the viewport.The element
<div id="paticka">O webu O…Školy Online.</div> falls outside the viewport.stredniskoly.cz HTML validation
Errors
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Malformed byte sequence: “f8”.
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Malformed byte sequence: “e1”.
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Malformed byte sequence: “f9”.
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Malformed byte sequence: “ec”.
Line: 7 Column: - 133
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Malformed byte sequence: “96”.
Line: 12 Column: - 50
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Internal encoding declaration “windows-1250” disagrees with the actual encoding of the document (“utf-8”).
Line: 6 Column: 1 - 29
"...> <head> <meta charset="windows-1250"> <meta..."
"...> <head> <meta charset="windows-1250"> <meta..."
Bad value “screen,projection” for attribute “media” on element “style”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
Line: 20 Column: 1 - 49
"...152298"> <style type="text/css" media="screen,projection">@impor..."
"...152298"> <style type="text/css" media="screen,projection">@impor..."
Malformed byte sequence: “da”.
Line: 57 Column: - 17
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Malformed byte sequence: “8a”.
Line: 58 Column: - 29
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Malformed byte sequence: “e8”.
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Malformed byte sequence: “9e”.
Line: 73 Column: - 230
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Malformed byte sequence: “fa”.
Line: 73 Column: - 369
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Malformed byte sequence: “9d”.
Line: 99 Column: - 43
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Malformed byte sequence: “e9”.
Line: 104 Column: - 12
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Malformed byte sequence: “c8”.
Line: 117 Column: - 525
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The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Line: 79 Column: 1 - 158
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"...-pravy"> <iframe src="https://ad.skoly-online.cz/iframe/stredniskoly/smvv.php" width="300" height="250" scrolling="no" frameborder="0"></ifra..."
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"...-pravy"> <iframe src="https://ad.skoly-online.cz/iframe/stredniskoly/smvv.php" width="300" height="250" scrolling="no" frameborder="0"></ifra..."
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
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"...s="obal"> <iframe src="https://ad.skoly-online.cz/iframe/stredniskoly/990_bank_swf.php" width="990" height="75" style="margin-top:10px;" scrolling="no" frameborder="0"></ifra..." Line: 127 Column: 1 - 126
"...-pravy"> <iframe src="https://ad.skoly-online.cz/iframe/stredniskoly/smvv.php" width="300" height="250" scrolling="no" frameborder="0"></ifra..." Line: 158 Column: 1 - 293
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"...s="obal"> <iframe src="https://ad.skoly-online.cz/iframe/stredniskoly/990_bank_swf.php" width="990" height="75" style="margin-top:10px;" scrolling="no" frameborder="0"></ifra..." Line: 127 Column: 1 - 126
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Malformed byte sequence: “f2”.
Line: 140 Column: - 1032
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stredniskoly.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.
stredniskoly.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.