9.4 sec in total
354 ms
8.2 sec
872 ms
Visit chmu.cz now to see the best up-to-date Chmu content for Czech Republic and also check out these interesting facts you probably never knew about chmu.cz
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Visit chmu.czWe analyzed Chmu.cz page load time and found that the first response time was 354 ms and then it took 9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
chmu.cz performance score
name
value
score
weighting
Value5.3 s
7/100
10%
Value5.4 s
20/100
25%
Value11.1 s
6/100
10%
Value1,210 ms
20/100
30%
Value0.351
31/100
15%
Value12.6 s
14/100
10%
354 ms
1236 ms
215 ms
325 ms
2370 ms
Our browser made a total of 130 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Chmu.cz, 84% (109 requests) were made to Portal.chmi.cz and 15% (20 requests) were made to Chmi.cz. The less responsive or slowest element that took the longest time to load (3.6 sec) relates to the external source Portal.chmi.cz.
Page size can be reduced by 259.8 kB (9%)
2.8 MB
2.5 MB
In fact, the total size of Chmu.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. 25% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.
Potential reduce by 63.3 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 14.1 kB, which is 18% 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 63.3 kB or 80% of the original size.
Potential reduce by 93.8 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. Chmu images are well optimized though.
Potential reduce by 102.6 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. Chmu.cz needs all CSS files to be minified and compressed as it can save up to 102.6 kB or 85% of the original size.
Number of requests can be reduced by 38 (36%)
105
67
The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chmu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
chmu.cz
354 ms
portal.chmi.cz
1236 ms
reset.css
215 ms
main.css
325 ms
jquery.js
2370 ms
encoding-indexes.js
2224 ms
encoding.js
714 ms
header-builder.js
321 ms
chmu.css
455 ms
addon.css
639 ms
fatwire.css
432 ms
portlet.css
541 ms
iclidata-full-css.css
572 ms
theme.css
649 ms
common.js
689 ms
chmu.js
745 ms
aim_isko_mapa.js
757 ms
calendar.js
920 ms
calendar-cs.js
831 ms
calendar-setup.js
853 ms
weatherXY.css
866 ms
weatherRcol.css
950 ms
weatherCR.css
959 ms
web_DOD.JPG
544 ms
bg-body.gif
117 ms
bg.gif
110 ms
logo.gif
117 ms
bg-header-holder-wide.png
112 ms
bg-header-wide.png
110 ms
bg-logo.gif
120 ms
bg-link-english.gif
219 ms
bg-link-sitemap.gif
217 ms
banner-meteorologie.jpg
328 ms
banner-ovzdusi.jpg
230 ms
banner-hydrologie.jpg
231 ms
nav-bg-wide.png
238 ms
nav8.gif
325 ms
blank.gif
324 ms
nav9.gif
343 ms
nav3.gif
344 ms
nav2.gif
357 ms
nav4.gif
432 ms
nav5.gif
431 ms
nav6.gif
438 ms
bg-content-holder-wide.png
458 ms
bg-content-wide.png
459 ms
bg-content-body-wide.png
474 ms
spacer.gif
537 ms
moravskoslezsky-kraj-logo.png
536 ms
88x31.png
545 ms
Living_Planet_Sympozium_2016.png
548 ms
Ceske_uzivatelske_forum_2016.png
551 ms
FFF240x140.gif
552 ms
radar.png
562 ms
env_logo_male.png
564 ms
wmo.gif
632 ms
cmes.gif
656 ms
ecmwf.jpg
661 ms
co2.jpg
662 ms
meteoalarm_logo_male.gif
678 ms
nkp.jpg
682 ms
eea.jpg
732 ms
eumet.jpg
768 ms
isdr.gif
772 ms
logo_cnv_onk_male.png
773 ms
ecomet.jpg
794 ms
CzechGlobe_logo_male.png
801 ms
CRA2.png
833 ms
CNVH_logo_male.jpg
871 ms
bg-warnings.gif
546 ms
h3-warnings.gif
546 ms
alert.xml
563 ms
bg-bookmark-pocasi.png
610 ms
bg-bookmark-voda.png
610 ms
bg-bookmark-ovzdusi.png
620 ms
CR.html
647 ms
PredIco.html
675 ms
weather-links.html
680 ms
h3-news.gif
701 ms
aktual.html
652 ms
sucho_male.html
664 ms
square-green.gif
701 ms
h3-actualities.gif
699 ms
square-grey.gif
726 ms
bg-footer-holder-wide.png
745 ms
bg-footer-wide.png
651 ms
bg-certifikaty.png
666 ms
web_DOD.JPG
3647 ms
Living_Planet_Sympozium_2016.png
1228 ms
Ceske_uzivatelske_forum_2016.png
405 ms
FFF240x140.gif
624 ms
radar.png
632 ms
env_logo_male.png
422 ms
wmo.gif
445 ms
cmes.gif
440 ms
ecmwf.jpg
535 ms
co2.jpg
542 ms
meteoalarm_logo_male.gif
606 ms
nkp.jpg
619 ms
CR.png
2503 ms
Image16.gif
619 ms
Y090.gif
691 ms
G090.gif
709 ms
Image8.gif
727 ms
G315.gif
795 ms
Y135.gif
817 ms
Image24.gif
836 ms
Image2.gif
901 ms
G135.gif
927 ms
Y045.gif
946 ms
G000.gif
1007 ms
ImageM3.gif
1021 ms
ImageM1.gif
1036 ms
ImageM8.gif
1088 ms
eea.jpg
1116 ms
ImageM27.gif
1114 ms
ImageM9.gif
1122 ms
eumet.jpg
1158 ms
isdr.gif
1186 ms
logo_cnv_onk_male.png
1205 ms
ecomet.jpg
1209 ms
CzechGlobe_logo_male.png
1231 ms
CRA2.png
1232 ms
CNVH_logo_male.jpg
1216 ms
bg-weather-other-day.png
1137 ms
aktual.png
1067 ms
aktual.png
1080 ms
kukurice-mala.jpg
1028 ms
kukurice-mala.jpg
1160 ms
print.css
118 ms
chmu.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
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
chmu.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
Missing source maps for large first-party JavaScript
chmu.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
CS
CS
WINDOWS-1250
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chmu.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 Chmu.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
chmu.cz
Open Graph description is not detected on the main page of Chmu. 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: