4 sec in total
662 ms
3 sec
324 ms
Welcome to odm.olympic.cz homepage info - get ready to check Odm Olympic best content for Czech Republic right away, or after learning these important things about odm.olympic.cz
Oficiální web Olympiád dětí a mládeže, projektu Českého olympijského výboru.
Visit odm.olympic.czWe analyzed Odm.olympic.cz page load time and found that the first response time was 662 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
odm.olympic.cz performance score
name
value
score
weighting
Value2.8 s
55/100
10%
Value14.0 s
0/100
25%
Value12.1 s
4/100
10%
Value620 ms
48/100
30%
Value0.406
24/100
15%
Value14.1 s
10/100
10%
662 ms
203 ms
198 ms
9 ms
208 ms
Our browser made a total of 73 requests to load all elements on the main page. We found that 77% of them (56 requests) were addressed to the original Odm.olympic.cz, 8% (6 requests) were made to Php.esports.cz and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Odm.olympic.cz.
Page size can be reduced by 354.9 kB (31%)
1.2 MB
798.2 kB
In fact, the total size of Odm.olympic.cz main page is 1.2 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. 50% of websites need less resources to load. Images take 690.0 kB which makes up the majority of the site volume.
Potential reduce by 40.5 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 7.7 kB, which is 14% 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 40.5 kB or 76% of the original size.
Potential reduce by 16.7 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. Odm Olympic images are well optimized though.
Potential reduce by 178.1 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 178.1 kB or 67% of the original size.
Potential reduce by 119.7 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. Odm.olympic.cz needs all CSS files to be minified and compressed as it can save up to 119.7 kB or 82% of the original size.
Number of requests can be reduced by 38 (57%)
67
29
The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Odm Olympic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
odm.olympic.cz
662 ms
selectivizr-min.js
203 ms
html5.js
198 ms
font-awesome.min.css
9 ms
bootstrap.min.css
208 ms
budicon.css
207 ms
screen.css
217 ms
prg.css
215 ms
jquery-1.10.1.min.js
28 ms
bootstrap.min.js
399 ms
jquery-ui-1.10.3.custom.min.js
403 ms
netteForms.js
396 ms
respond.min.js
397 ms
jquery.nicescroll.min.js
502 ms
jquery.flexslider-min.js
409 ms
placeholders.min.js
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jquery.selectric.min.js
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icheck.min.js
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masonry.pkgd.min.js
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main.js
610 ms
prg.js
700 ms
es-strip-olympic.js
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platform.js
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analytics.js
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bg-body-lg.png
1048 ms
logo-odm.png
555 ms
logo-olympic.png
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logo-odm-general.png
560 ms
logo-facebook.png
567 ms
logo-twitter.png
665 ms
logo-instagram.png
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logo-youtube.png
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bullet-red.png
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ic-ts_zflutx34ft.jpg
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square-white.png
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logo-twitter-white.png
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logo-facebook-white.png
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min.php
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bg-player.jpg
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square-red.png
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logo-olympics.png
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pic02.png
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icomoon.woff
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pic04.png
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pic22.png
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pic24.png
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pic25.png
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olympic.png
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sdk.js
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widgets.js
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cesko_sportuje.png
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czech-team.png
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android.png
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apple.png
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dot.asp
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slider-arrow-left.png
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slider-arrow-right.png
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41 ms
xd_arbiter.php
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xd_arbiter.php
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odm.olympic.cz accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
Image elements do not have [alt] attributes
Links do not have a discernible name
odm.olympic.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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
odm.olympic.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
Tap targets are not sized appropriately
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Odm.olympic.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Odm.olympic.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.
odm.olympic.cz
Open Graph description is not detected on the main page of Odm Olympic. 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: