4.2 sec in total
314 ms
3.7 sec
247 ms
Click here to check amazing Czechopen content for Czech Republic. Otherwise, check out these important facts you probably never knew about czechopen.cz
Visit czechopen.czWe analyzed Czechopen.cz page load time and found that the first response time was 314 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
czechopen.cz performance score
name
value
score
weighting
Value7.6 s
0/100
10%
Value15.1 s
0/100
25%
Value18.6 s
0/100
10%
Value3,880 ms
1/100
30%
Value0
100/100
15%
Value32.4 s
0/100
10%
314 ms
477 ms
315 ms
211 ms
213 ms
Our browser made a total of 96 requests to load all elements on the main page. We found that 85% of them (82 requests) were addressed to the original Czechopen.cz, 2% (2 requests) were made to C.imedia.cz and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Czechopen.cz.
Page size can be reduced by 1.4 MB (50%)
2.8 MB
1.4 MB
In fact, the total size of Czechopen.cz main page is 2.8 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. 70% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.
Potential reduce by 58.9 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 58.9 kB or 81% of the original size.
Potential reduce by 20.8 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. Czechopen images are well optimized though.
Potential reduce by 600.9 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 600.9 kB or 67% of the original size.
Potential reduce by 719.8 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. Czechopen.cz needs all CSS files to be minified and compressed as it can save up to 719.8 kB or 86% of the original size.
Number of requests can be reduced by 39 (43%)
90
51
The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Czechopen. 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 13 to 1 for CSS and as a result speed up the page load time.
czechopen.cz
314 ms
477 ms
jquery.min.js
315 ms
jquery.cycle2.js
211 ms
jquery.cycle2.scrollVert.js
213 ms
aui.css
344 ms
main.css
338 ms
main.css
217 ms
main.css
335 ms
main.css
337 ms
main.css
351 ms
main.css
420 ms
barebone.jsp
1045 ms
main.js
423 ms
main.js
423 ms
navigation.js
427 ms
index
449 ms
main.css
526 ms
conversion.js
14 ms
retargeting.js
350 ms
index
539 ms
calendar-localization.js
527 ms
main.js
534 ms
main.js
460 ms
colorpicker.css
302 ms
ga.js
32 ms
spacer.png
140 ms
logo_big.png
140 ms
facebook.png
141 ms
twitter.png
138 ms
youtube.png
140 ms
flickr.png
141 ms
vimeo.png
279 ms
mail.png
270 ms
5b0095c4-b845-43f1-bcd0-1176079fb7b6
279 ms
62809149-c52e-4f93-8ec2-30ff185f9923
271 ms
logo_czech_open_middle.jpg
354 ms
SWE.png
276 ms
logo_prague_games_middle.jpg
348 ms
CZE.png
350 ms
FIN.png
354 ms
8a17b09b-ea0b-4e5f-8184-0295e26fab7b
565 ms
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673 ms
9d16307c-799f-4c4d-89de-50a56206bf6c
452 ms
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662 ms
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454 ms
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456 ms
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556 ms
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561 ms
5af8f3f6-7a10-4e49-8476-3e0f644cd7f0
563 ms
adabb895-8aa3-4d57-8d8f-0e1b13a1446c
660 ms
d7f6c82f-e355-440c-9e73-280fd3552f6d
664 ms
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669 ms
90284821-79ce-4081-92c3-715ef3a8e092
669 ms
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766 ms
e081d9e2-024f-4e76-9da6-f2e8ac08ba4d
767 ms
75fc2653-02aa-4ace-890d-658236c3f4c1
771 ms
61 ms
__utm.gif
37 ms
retargeting
113 ms
button_prague_games.gif
738 ms
button_prague_masters.gif
739 ms
button_prague_wheel_open.gif
740 ms
_sprite.png
832 ms
830 ms
50CUOosNb84
123 ms
77 ms
fontawesome-alloy.woff
848 ms
background_top.png
962 ms
mainMenu_back.gif
757 ms
mainMenu_active.gif
756 ms
247d1426-8a91-469e-912f-dc641fa653ea
841 ms
4ca24b80-b1e0-4dc2-ab3b-aa7030612aef
844 ms
www-embed-player-vflfNyN_r.css
32 ms
www-embed-player.js
58 ms
Lrq7Jibxdtv2QOPyDSqncpDfQFNs3PE6SoUrUNh2GTU.js
12 ms
ad_status.js
28 ms
ab50bf03-4934-48f3-828f-d6adfe90f9f1
725 ms
edc1508a-794d-4b47-9d9d-6b2df70e3ca6
723 ms
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807 ms
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811 ms
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917 ms
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19 ms
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20 ms
5c5b9206-4e76-46b1-b84d-fb9cc3ea6e92
752 ms
6b09b1a3-f666-492b-b084-848d142c0b0b
754 ms
d46eb3d9-e16d-44aa-b3cf-14d7be34ef71
836 ms
button_empty.png
840 ms
icon_arrow.gif
755 ms
background_box_header.gif
754 ms
button_end.gif
756 ms
button_text.gif
735 ms
button_start.gif
738 ms
logo_small.gif
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427 ms
139 ms
czechopen.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
czechopen.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
czechopen.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
N/A
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Czechopen.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Czechopen.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.
czechopen.cz
Open Graph description is not detected on the main page of Czechopen. 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: