dzs.cz Website Information
Daily Unique Visits: 11,716
Daily Page Views: 58,580
Income Per Day: $146
Estimated Value: $87,600
This website is located in Czech Republic and is using following IP address 185.59.210.118. See the complete list of popular websites hosted in Czech Republic.
dzs.cz is registered under .CZ top-level domain. Please check other sites in .CZ zone.
Website dzs.cz is using the following name servers:
- alfa.ns.active24.cz
- beta.ns.active24.cz
- gama.ns.active24.sk
and is probably hosted by VSHosting s.r.o.. See the full list of other websites hosted by VSHosting s.r.o..
The highest website dzs.cz position in Alexa rank database was 13804 and the lowest rank position was 997784. Current position of dzs.cz in Alexa rank database is 116298.
Desktop speed score of dzs.cz (67/100) is better than the results of 45.93% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of dzs.cz (96/100) is better than the results of 46.59% of other sites and means that the page is mobile-friendly.
Mobile speed score of dzs.cz (62/100) is better than the results of 59.44% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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dzs.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.
dzs.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.
%
% Intended use of supplied data and information
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% 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: 3.12.2
% Timestamp: Thu Jan 20 15:59:39 2022
domain: dzs.cz
registrant: SB:BK106-RIPE_XX
admin-c: BK106-RIPE
nsset: NSS:GLOBE-SGLO000001:1
keyset: A24-KEYSET
registrar: REG-ACTIVE24
registered: 21.10.1996 02:00:00
changed: 13.11.2009 03:24:08
expire: 29.10.2029
contact: SB:BK106-RIPE_XX
org: Dum zahranicnich sluzeb
name: Dum zahranicnich sluzeb
address: Senovazne nam. 26
address: Praha 1
address: 111 21
address: CZ
registrar: REG-CZNIC
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
contact: BK106-RIPE
name: Bohuslav Kamenik
address: CZ
registrar: REG-ACTIVE24
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00
nsset: NSS:GLOBE-SGLO000001:1
nserver: alfa.ns.active24.cz (81.95.96.2, 2a02:4a8:ac24:100::96:2)
nserver: beta.ns.active24.cz (81.0.238.27, 2001:1528:151::12)
nserver: gama.ns.active24.sk
tech-c: ACTIVE24
registrar: REG-ACTIVE24
created: 01.10.2007 02:00:00
changed: 28.10.2021 22:12:07
contact: ACTIVE24
org: ACTIVE 24, s.r.o.
name: ACTIVE 24, s.r.o.
address: Sokolovská 394/17
address: Praha 8
address: 186 00
address: CZ
registrar: REG-ACTIVE24
created: 29.04.2008 12:35:02
changed: 15.05.2018 21:32:00
keyset: A24-KEYSET
dnskey: 257 3 13 0EK9ChwJW+CVCvP7mizQwEnR2OJpHgbLmilGV5OyqncZoOufo9fIbVrvxT6qid/T9sAWH7KOfzItPxkVOIbRjg==
tech-c: ACTIVE24
registrar: REG-ACTIVE24
created: 26.11.2008 14:12:02
changed: 10.09.2019 15:48:38
dzs.cz server information
Servers Location
dzs.cz desktop page speed rank
Last tested: 2019-12-01
dzs.cz Desktop Speed Test Quick Summary
priority - 21Optimize images
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priority - 14Leverage browser caching
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https://www.dzs.cz/images/loga/twinning.png (expiration not specified)
https://www.dzs.cz/images/logo.png (expiration not specified)
https://www.dzs.cz/js/scripts.js (expiration not specified)
https://static.hotjar.com/c/hotjar-1481062.js?sv=5 (60 seconds)
https://use.typekit.net/ysj3lmr.js (10 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-TH3VPM7 (15 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 8Eliminate 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 - 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://www.dzs.cz/
https://www.dzs.cz/
priority - 0Enable 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 3.3KiB (50% reduction).
Compressing https://www.dzs.cz/images/gfx/footer-contact.svg could save 476B (45% reduction).
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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 1.4KiB (32% 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 1.3KiB (14% reduction).
dzs.cz Desktop Resource Breakdown
Total Resources | 44 |
Number of Hosts | 7 |
Static Resources | 32 |
JavaScript Resources | 6 |
CSS Resources | 1 |
dzs.cz mobile page speed rank
Last tested: 2018-01-16
dzs.cz Mobile Speed Test Quick Summary
priority - 32Eliminate 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 - 17Leverage 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.dzs.cz/images/gfx/fb.svg (expiration not specified)
http://www.dzs.cz/images/gfx/footer-contact.svg (expiration not specified)
http://www.dzs.cz/images/gfx/hp-bg.jpg (expiration not specified)
http://www.dzs.cz/images/gfx/search.svg (expiration not specified)
http://www.dzs.cz/images/gfx/teaser-bg.png (expiration not specified)
http://www.dzs.cz/images/gfx/teaser-next.png (expiration not specified)
http://www.dzs.cz/images/gfx/teaser.png (expiration not specified)
http://www.dzs.cz/images/gfx/tg-networks.jpg (expiration not specified)
http://www.dzs.cz/images/gfx/tg-projects.jpg (expiration not specified)
http://www.dzs.cz/images/gfx/tg-study.jpg (expiration not specified)
http://www.dzs.cz/images/gfx/tg-trips.jpg (expiration not specified)
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http://www.dzs.cz/images/loga/erasmus.png (expiration not specified)
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http://www.dzs.cz/images/loga/msmt.png (expiration not specified)
http://www.dzs.cz/images/loga/twinning.png (expiration not specified)
http://www.dzs.cz/images/logo.png (expiration not specified)
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https://use.typekit.net/ysj3lmr.js (10 minutes)
priority - 15Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 144.1KiB (55% reduction).
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priority - 0Enable 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 3.3KiB (50% reduction).
Compressing http://www.dzs.cz/images/gfx/footer-contact.svg could save 476B (45% reduction).
Compressing http://www.dzs.cz/images/gfx/fb.svg could save 255B (37% reduction).
Compressing http://www.dzs.cz/images/gfx/search.svg could save 208B (37% 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 1.6KiB (38% 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 1.3KiB (14% reduction).
dzs.cz Mobile Resource Breakdown
Total Resources | 34 |
Number of Hosts | 4 |
Static Resources | 24 |
JavaScript Resources | 2 |
CSS Resources | 1 |
dzs.cz mobile page usability
Last tested: 2018-01-16
dzs.cz Mobile Usability Test Quick Summary
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 422 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:
<div class="hp-bottom-group">Nejbližší udál…vé stránky DZS</div>
falls outside the viewport.dzs.cz HTML validation
Errors
Attribute “xmlns:ng” not allowed here.
"...TYPE HTML> <html xmlns:ng="http://angularjs.org" lang="cs"> <hea..."
Element “p” not allowed as child of element “small” in this context. (Suppressing further errors from this subtree.)
"... <small><p>PŘIHLA..." Line: 133 Column: 13 - 15
"... <small><p>k před..."
The “big” element is obsolete. Use CSS instead.
"...nts"> <big class="section-title">Nejbli..." Line: 378 Column: 5 - 31
"...gos"> <big class="section-title">Další ..." Line: 406 Column: 7 - 11
"...e"> <big>PŘIHLA..." Line: 418 Column: 6 - 33
"...ls"> <big class="socials__title">Sleduj..." Line: 429 Column: 7 - 11
"...u"> <big>Naviga..." Line: 448 Column: 7 - 11
"...t"> <big>Kontak..."
End tag “div” seen, but there were open elements.
".../div> </div> <..."
Unclosed element “nav”.
"...iv> <nav class="rich-footer"> ..."
Stray end tag “div”.
".../div> </div> ..."
Warnings
Attribute with the local name “xmlns:ng” is not serializable as XML 1.0.
"...TYPE HTML> <html xmlns:ng="http://angularjs.org" lang="cs"> <hea..."
Consider avoiding viewport values that prevent users from resizing documents.
"...out" /> <meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0" /> <s..."
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
"...er"> <article class="newsletter__article"> ..."
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dzs.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.
dzs.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.