3.2 sec in total
442 ms
2.6 sec
138 ms
Welcome to vstupenky.hvezdarna.cz homepage info - get ready to check Vstupenky Hvezdarna best content for Russia right away, or after learning these important things about vstupenky.hvezdarna.cz
Hvězdárna a planetárium Brno
Visit vstupenky.hvezdarna.czWe analyzed Vstupenky.hvezdarna.cz page load time and found that the first response time was 442 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
vstupenky.hvezdarna.cz performance score
name
value
score
weighting
Value2.7 s
60/100
10%
Value6.0 s
13/100
25%
Value3.8 s
84/100
10%
Value40 ms
100/100
30%
Value0.116
85/100
15%
Value3.9 s
88/100
10%
442 ms
776 ms
734 ms
438 ms
220 ms
Our browser made a total of 41 requests to load all elements on the main page. We found that 98% of them (40 requests) were addressed to the original Vstupenky.hvezdarna.cz, 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Vstupenky.hvezdarna.cz.
Page size can be reduced by 788.7 kB (77%)
1.0 MB
230.5 kB
In fact, the total size of Vstupenky.hvezdarna.cz main page is 1.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 738.6 kB which makes up the majority of the site volume.
Potential reduce by 29.1 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 8.0 kB, which is 24% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 29.1 kB or 86% of the original size.
Potential reduce by 8.0 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Vstupenky Hvezdarna needs image optimization as it can save up to 8.0 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 594.9 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 594.9 kB or 81% of the original size.
Potential reduce by 156.8 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Vstupenky.hvezdarna.cz needs all CSS files to be minified and compressed as it can save up to 156.8 kB or 87% of the original size.
Number of requests can be reduced by 23 (61%)
38
15
The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vstupenky Hvezdarna. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
vstupenky.hvezdarna.cz
442 ms
list
776 ms
style_system.css
734 ms
style_theme.css
438 ms
style_customer.css
220 ms
jquery-ui-1.8.16.custom.css
567 ms
calendarDynarch.css
427 ms
rotation.css
664 ms
jquery-1.6.2.min.js
682 ms
jquery-ui-1.8.16.custom.min.js
1264 ms
jquery-ui-timepicker-addon.js
770 ms
RegionalSettingsDateTimePicker.js
689 ms
jquery.spinner.js
777 ms
jqModal.js
795 ms
jqFunctions.js
808 ms
jqTableListSort.js
832 ms
jquery.dataTables.js
1109 ms
jquery.poshytip.js
789 ms
jscal2.js
815 ms
jscal2_localization.js
826 ms
jQuery.glob.min.js
848 ms
jQuery.glob.cs-CZ.min.js
904 ms
GlobalizationFunctions.js
927 ms
toggle-content.js
937 ms
custom.js
951 ms
jqListFunction.js
902 ms
main-back3.jpg
402 ms
cz.png
129 ms
en.png
139 ms
de.png
121 ms
transparent.gif
116 ms
gtm.js
61 ms
header-back.png
115 ms
header-logo.png
117 ms
spinner.gif
175 ms
sort_asc.png
161 ms
first_disabled.png
165 ms
prev_disabled.png
170 ms
next.png
179 ms
last.png
211 ms
style_print.css
118 ms
vstupenky.hvezdarna.cz accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Form elements do not have associated labels
Links do not have a discernible name
vstupenky.hvezdarna.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
vstupenky.hvezdarna.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
CS
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vstupenky.hvezdarna.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Vstupenky.hvezdarna.cz main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
vstupenky.hvezdarna.cz
Open Graph description is not detected on the main page of Vstupenky Hvezdarna. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: