3 sec in total
357 ms
2.3 sec
352 ms
Visit radioonline.cz now to see the best up-to-date Radio Online content for Czech Republic and also check out these interesting facts you probably never knew about radioonline.cz
Rádio Online - poslouchejte česká i zahraniční rádia online, youtube písničky, karaoke texty, texty písní, hitparáda a lyrics.
Visit radioonline.czWe analyzed Radioonline.cz page load time and found that the first response time was 357 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.
radioonline.cz performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value7.3 s
5/100
25%
Value6.5 s
38/100
10%
Value510 ms
57/100
30%
Value0.149
76/100
15%
Value9.0 s
34/100
10%
357 ms
767 ms
244 ms
6 ms
235 ms
Our browser made a total of 62 requests to load all elements on the main page. We found that 55% of them (34 requests) were addressed to the original Radioonline.cz, 15% (9 requests) were made to Img.youtube.com and 8% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (796 ms) belongs to the original domain Radioonline.cz.
Page size can be reduced by 246.3 kB (33%)
756.7 kB
510.4 kB
In fact, the total size of Radioonline.cz main page is 756.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 397.5 kB which makes up the majority of the site volume.
Potential reduce by 26.9 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 26.9 kB or 74% of the original size.
Potential reduce by 46.3 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, Radio Online needs image optimization as it can save up to 46.3 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 120.4 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 120.4 kB or 47% of the original size.
Potential reduce by 52.7 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. Radioonline.cz needs all CSS files to be minified and compressed as it can save up to 52.7 kB or 81% of the original size.
Number of requests can be reduced by 16 (28%)
58
42
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Radio Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.
radioonline.cz
357 ms
www.radioonline.cz
767 ms
web.4.css
244 ms
swfobject.js
6 ms
video.js
235 ms
web.2.js
472 ms
adsbygoogle.js
4 ms
2.jpg
18 ms
bg.png
130 ms
bg2.jpg
484 ms
hlavicka.jpg
357 ms
vrch.jpg
348 ms
facebook.png
237 ms
logo.jpg
238 ms
menu.png
239 ms
vyhledavani-input.png
355 ms
vyhledat.png
356 ms
oddelovac.png
362 ms
content_wide.png
480 ms
50124_200_150.jpg
481 ms
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40-100x120.jpg
580 ms
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588 ms
intro_rds.png
610 ms
2.jpg
29 ms
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29 ms
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13 ms
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14 ms
2.jpg
45 ms
2.jpg
73 ms
2.jpg
30 ms
2.jpg
44 ms
ca-pub-8570667825985906.js
57 ms
zrt_lookup.html
55 ms
show_ads_impl.js
62 ms
intro_hit.png
582 ms
yt_related_bg.png
668 ms
paticka1.png
796 ms
paticka-logo.png
686 ms
paticka-menu.png
687 ms
paticka2.png
700 ms
sitemap.png
700 ms
ga.js
19 ms
loadingAnimation.gif
771 ms
ui-bg_highlight-soft_100_eeeeee_1x100.png
789 ms
__utm.gif
55 ms
ads
236 ms
osd.js
4 ms
css
58 ms
m_js_controller.js
31 ms
abg.js
34 ms
favicon
35 ms
nessie_icon_tiamat_white.png
18 ms
s
11 ms
googlelogo_color_112x36dp.png
18 ms
x_button_blue2.png
11 ms
MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js
6 ms
Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf
29 ms
radioonline.cz accessibility score
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
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
radioonline.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
radioonline.cz SEO score
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Radioonline.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 Radioonline.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.
radioonline.cz
Open Graph description is not detected on the main page of Radio Online. 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: