4.5 sec in total
1.1 sec
3.1 sec
355 ms
Visit clanky.rvp.cz now to see the best up-to-date Clanky Rvp content for Czech Republic and also check out these interesting facts you probably never knew about clanky.rvp.cz
Odborné články na portálu RVP.CZ
Visit clanky.rvp.czWe analyzed Clanky.rvp.cz page load time and found that the first response time was 1.1 sec and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
clanky.rvp.cz performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value9.7 s
0/100
25%
Value6.4 s
40/100
10%
Value540 ms
54/100
30%
Value0.004
100/100
15%
Value10.9 s
21/100
10%
1113 ms
508 ms
710 ms
665 ms
605 ms
Our browser made a total of 96 requests to load all elements on the main page. We found that 92% of them (88 requests) were addressed to the original Clanky.rvp.cz, 5% (5 requests) were made to Rvp.cz and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Clanky.rvp.cz.
Page size can be reduced by 244.8 kB (46%)
526.9 kB
282.1 kB
In fact, the total size of Clanky.rvp.cz main page is 526.9 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. 25% of websites need less resources to load. Images take 217.6 kB which makes up the majority of the site volume.
Potential reduce by 33.4 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 33.4 kB or 77% of the original size.
Potential reduce by 21.5 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. Clanky Rvp images are well optimized though.
Potential reduce by 122.6 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 122.6 kB or 66% of the original size.
Potential reduce by 67.4 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. Clanky.rvp.cz needs all CSS files to be minified and compressed as it can save up to 67.4 kB or 84% of the original size.
Number of requests can be reduced by 50 (53%)
95
45
The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clanky Rvp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
clanky.rvp.cz
1113 ms
jquery-ui.css
508 ms
jquery-1.3.2.min.js
710 ms
jquery-ui-1.7.2.custom.min.js
665 ms
ASCIIMathTeXImg.js
605 ms
round.js
671 ms
AJS.js
679 ms
AJS_fx.js
607 ms
gb_scripts.js
724 ms
gb_styles.css
723 ms
style.css
956 ms
add.css
678 ms
ajaxstrom.js
522 ms
dot.gif
122 ms
ikonky.png
425 ms
logo_nuv.gif
320 ms
ikonky4.png
219 ms
back_default.png
118 ms
rvpstar.png
114 ms
logo.png
117 ms
log_bottom.png
119 ms
log_back.png
115 ms
submit.png
118 ms
banner-clanky.png
406 ms
pvn.png
206 ms
zvn.png
214 ms
uvn.png
225 ms
svn.png
340 ms
gvn.png
228 ms
ovn.png
308 ms
jvn.png
320 ms
nvn.png
335 ms
ui-bg_inset-hard_100_fcfdfd_1x100.png
341 ms
right_left.png
410 ms
right_right.png
427 ms
zalozky2_h.png
446 ms
zalozky_poz.png
452 ms
rss.png
454 ms
5_s.png
506 ms
z.png
509 ms
g.png
533 ms
p.png
556 ms
u.png
563 ms
s.png
565 ms
o.png
607 ms
j.png
610 ms
n.png
639 ms
prakticky-z.png
665 ms
inspirace-z.png
675 ms
4_s.png
678 ms
3_s.png
710 ms
informativni-z.png
713 ms
teoreticky-z.png
732 ms
dot.asp
216 ms
ga.js
29 ms
__utm.gif
12 ms
odbornost-z.png
667 ms
zal_vyuka.png
679 ms
zal_kurikulum.png
679 ms
zal_ucitel.png
698 ms
zal_skola.png
703 ms
zal_okoli.png
740 ms
zal_info.png
687 ms
pocet_poz.png
694 ms
zalozky2_f.png
683 ms
videospot_h.png
686 ms
videospot_f.png
613 ms
ui-bg_gloss-wave_50_4A6484_500x100.png
643 ms
ui-icons_ffffff_256x240.png
668 ms
ui-bg_glass_45_dddddd_1x400.png
680 ms
ui-icons_4A6484_256x240.png
680 ms
mam_dotaz.png
612 ms
stat_se_autorem.png
614 ms
kontakty.png
644 ms
vyber_poz_h.png
668 ms
zal_top_h.png
666 ms
zal_top.png
678 ms
vyber_poz_f.png
626 ms
top_pozadi_h.png
614 ms
top_pozadi.png
642 ms
top_pozadi_bod_h.png
668 ms
top_pozadi_bod_f.png
654 ms
top_pozadi_f.png
659 ms
tl.png
637 ms
bl.png
634 ms
br.png
643 ms
tr.png
652 ms
stl.png
657 ms
sbl.png
646 ms
sbr.png
645 ms
str.png
645 ms
print.css
108 ms
w_close.gif
108 ms
header_bg.gif
103 ms
g_close.gif
113 ms
indicator.gif
115 ms
clanky.rvp.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-*] attributes do not match their roles
ARIA input fields do not have accessible names
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
Buttons do not have an accessible name
Form elements do not have associated labels
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
clanky.rvp.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
Page has valid source maps
clanky.rvp.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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Clanky.rvp.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 Clanky.rvp.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.
clanky.rvp.cz
Open Graph description is not detected on the main page of Clanky Rvp. 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: