astro.cz website information.
astro.cz domain name is registered by .CZ top-level domain registry. See the other sites registred in .CZ domain zone.
Following name servers are specified for astro.cz domain:
- ns.astro.cz
- visla.utia.cas.cz
and probably website astro.cz is hosted by Slovak Telecom, a. s. web hosting company. Check the complete list of other most popular websites hosted by Slovak Telecom, a. s. hosting company.
According to Alexa traffic rank the highest website astro.cz position was 15767 (in the world). The lowest Alexa rank position was 902223. Now website astro.cz ranked in Alexa database as number 92244 (in the world).
Website astro.cz Desktop speed measurement score (70/100) is better than the results of 50.91% of other sites shows that the page desktop performance can be improved.
astro.cz Mobile usability score (98/100) is better than the results of 55.61% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of astro.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.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Nov-25-2024 | 92,244 | -2,247 |
| Nov-24-2024 | 89,997 | 1,217 |
| Nov-23-2024 | 91,214 | -1,115 |
| Nov-22-2024 | 90,099 | 1,035 |
| Nov-21-2024 | 91,134 | -985 |
| Nov-20-2024 | 90,149 | -764 |
| Nov-19-2024 | 89,385 | -180 |
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astro.cz Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
astro.cz whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
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astro.cz server information
astro.cz desktop page speed rank
Last tested: 2017-04-29
astro.cz Desktop Speed Test Quick Summary
priority - 30 Optimize images
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priority - 10 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 12 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
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Optimize CSS Delivery of the following:
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priority - 2 Leverage 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://static.hotjar.com/c/hotjar-25765.js?sv=3 (60 seconds)
http://connect.facebook.net/cs_CZ/all.js (20 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 1 Minify JavaScript
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priority - 0 Minify CSS
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astro.cz Desktop Resources
| Total Resources | 88 |
| Number of Hosts | 13 |
| Static Resources | 77 |
| JavaScript Resources | 16 |
| CSS Resources | 7 |
astro.cz Desktop Resource Breakdown
astro.cz mobile page speed rank
Last tested: 2017-04-29
astro.cz Mobile Speed Test Quick Summary
priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 12 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://cdn.jquerytools.org/1.2.7/full/jquery.tools.min.js
http://www.astro.cz/_ui/js/jquery.plugin.js
http://www.astro.cz/_ui/js/jquery.countdown.min.js
http://www.astro.cz/_ui/js/jquery.countdown-cs.js
http://www.astro.cz/_ui/js/jquery-ui-1.8.23.custom.min.js
http://www.astro.cz/_ui/js/jquery-ui-timepicker-addon.min.js
http://www.astro.cz/_ui/js/jquery.colorbox-min.js
http://www.astro.cz/_ui/js/responsive-tables.js
http://www.astro.cz/script/jquery.autoSuggest.js
http://www.astro.cz/_ui/js/main.js?3
http://www.astro.cz/script/kalendar.js
Optimize CSS Delivery of the following:
http://www.astro.cz/_ui/css/main.css?1
http://www.astro.cz/style/autoSuggest.css
http://www.astro.cz/_ui/css/jqueryUI/jquery-ui-1.8.23.custom.css
http://www.astro.cz/_ui/css/jquery-ui-timepicker-addon.css
http://www.astro.cz/_ui/css/responsive-tables.css
priority - 30 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 295KiB (51% reduction).
Compressing http://www.astro.cz/images/obrazky/original/096960.jpg could save 52.5KiB (82% reduction).
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Compressing http://www.astro.cz/_ui/gfx/sprite.png could save 607B (11% reduction).
priority - 3 Leverage 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://static.hotjar.com/c/hotjar-25765.js?sv=3 (60 seconds)
http://connect.facebook.net/cs_CZ/all.js (20 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 1 Minify 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 5.7KiB (42% reduction).
Minifying http://www.astro.cz/_ui/js/main.js?3 could save 2.2KiB (36% reduction) after compression.
Minifying http://www.astro.cz/script/jquery.autoSuggest.js could save 1.2KiB (30% reduction) after compression.
priority - 0 Minify 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 3.7KiB (19% reduction).
Minifying http://www.astro.cz/_ui/css/jqueryUI/jquery-ui-1.8.23.custom.css could save 1.6KiB (27% reduction) after compression.
astro.cz Mobile Resources
| Total Resources | 87 |
| Number of Hosts | 13 |
| Static Resources | 76 |
| JavaScript Resources | 16 |
| CSS Resources | 7 |
astro.cz Mobile Resource Breakdown
astro.cz mobile page usability
Last tested: 2017-04-29
astro.cz Mobile Usability Test Quick Summary
priority - 2 Size 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.
<a href="/autori/viktor…mancikova.html">Viktória Zemančíková</a> and 9 others are close to other tap targets.<a href="/clanky/ostatni.html" class="category">Ostatní</a> and 9 others are close to other tap targets.<a href="/clanky/ostatn…nej-drahe.html">Vedci zaostril…Mliečnej dráhe</a> and 9 others are close to other tap targets.The tap target
<a href="/fotogalerie/c…ie-mesice.html">Česká astrofotografie měsíce</a> is close to 1 other tap targets.The tap target
<a href="http://www.cas100geo.cz">www.cas100geo.cz</a> and 3 others are close to other tap targets.The tap target
<a href="http://www.ast…polecnost.html">Česká astronomická společnost</a> and 1 others are close to other tap targets.astro.cz similar domains
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astro.cz Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
astro.cz TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.