49.7 sec in total
497 ms
42.5 sec
6.7 sec
Visit czub.cz now to see the best up-to-date CZUB content for United States and also check out these interesting facts you probably never knew about czub.cz
Default Description
Visit czub.czWe analyzed Czub.cz page load time and found that the first response time was 497 ms and then it took 49.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
czub.cz performance score
name
value
score
weighting
Value2.6 s
62/100
10%
Value8.4 s
2/100
25%
Value8.6 s
17/100
10%
Value900 ms
31/100
30%
Value0.081
94/100
15%
Value7.5 s
48/100
10%
497 ms
1939 ms
781 ms
963 ms
1083 ms
Our browser made a total of 104 requests to load all elements on the main page. We found that 89% of them (93 requests) were addressed to the original Czub.cz, 5% (5 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (8.7 sec) belongs to the original domain Czub.cz.
Page size can be reduced by 3.9 MB (17%)
23.5 MB
19.6 MB
In fact, the total size of Czub.cz main page is 23.5 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. Only a small number of websites need less resources to load. Images take 20.8 MB which makes up the majority of the site volume.
Potential reduce by 222.9 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 222.9 kB or 76% of the original size.
Potential reduce by 1.8 MB
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. CZUB images are well optimized though.
Potential reduce by 1.4 MB
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 1.4 MB or 73% of the original size.
Potential reduce by 507.6 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. Czub.cz needs all CSS files to be minified and compressed as it can save up to 507.6 kB or 86% of the original size.
Number of requests can be reduced by 67 (69%)
97
30
The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CZUB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 44 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.
czub.cz
497 ms
www.czub.cz
1939 ms
groupcat.css
781 ms
jquery.fancybox-1.3.4.css
963 ms
calendar-win2k-1.css
1083 ms
styles.css
1098 ms
widgets.css
1451 ms
noreload.css
1469 ms
ajaxcart.css
1468 ms
slideshow.css
1498 ms
settings.css
1453 ms
megamenu.css
1531 ms
custom.css
1631 ms
local.css
2099 ms
owl.carousel.css
2011 ms
owl.theme.css
2011 ms
owl.transitions.css
2010 ms
custom.css
1992 ms
animation.css
1961 ms
grid.css
2613 ms
retina.css
1847 ms
font-awesome.css
2332 ms
options_base_cz.css
2329 ms
settings.css
2400 ms
prototype.js
3421 ms
ccard.js
3822 ms
validation.js
3411 ms
builder.js
3411 ms
effects.js
3812 ms
dragdrop.js
3390 ms
controls.js
3963 ms
slider.js
3916 ms
js.js
3955 ms
form.js
3947 ms
translate.js
4038 ms
cookies.js
3895 ms
et_currencymanager_round.js
4026 ms
css
3893 ms
css
1758 ms
jquery-1.8.3-conditional.js
5607 ms
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6232 ms
jquery-1.11.0.min.js
3580 ms
jquery-migrate-1.2.1.min.js
3309 ms
jquery.noconflict.js
3923 ms
jquery.fancybox-1.3.4.pack.js
3840 ms
base64.js
3791 ms
jquery.cycle2.min.js
3793 ms
calendar.js
4201 ms
calendar-setup.js
3842 ms
jquery.easing.js
3762 ms
jquery.swipe.js
3664 ms
jquery.jcarousel.min.js
3663 ms
jquery.anystretch.1.2.min.js
4319 ms
jquery-1.11.0.min.js
4191 ms
jquery-migrate-1.2.1.min.js
3916 ms
jquery.noconflict.js
4172 ms
noreload.js
4172 ms
ajaxcart.js
4108 ms
slideshow.js
4107 ms
jquery.themepunch.tools.min.js
4074 ms
jquery.themepunch.revolution.min.js
4829 ms
script.js
3775 ms
megamenu.js
3637 ms
owl.carousel.min.js
3574 ms
modernizr.custom.min.js
2944 ms
app.js
3787 ms
script.js
3788 ms
jquery.themepunch.tools.min.js
3388 ms
jquery.themepunch.revolution.min.js
3264 ms
print.css
609 ms
analytics.js
38 ms
logo.png
1812 ms
cz.png
1618 ms
icon_search.png
1615 ms
transparent.png
1607 ms
CZ_P-10_C_3D_w.png
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cz_550_safari_classics_3d_mat.png
1991 ms
CZ_Shadow2_3D_slider.png
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brno_express_3d.png
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banner_katalog_2017.jpg
1946 ms
banner_web_katalogy_nahled_530x220_kopie_3.jpg
2312 ms
slide_3cz.jpg
2803 ms
USA.png
2786 ms
AUTO_2.png
3001 ms
DW.png
2922 ms
ZB.png
3330 ms
k01.png
3252 ms
collect
625 ms
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5587 ms
banners_slider_arrows.png
618 ms
slider_arrows.png
2129 ms
connect_icons.png
695 ms
totop_arrows.png
5024 ms
revolution.extension.slideanims.min.js
1386 ms
revolution.extension.actions.min.js
1341 ms
revolution.extension.layeranimation.min.js
1342 ms
revolution.extension.navigation.min.js
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revolution.extension.parallax.min.js
1623 ms
czub.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
Heading elements are not in a sequentially-descending order
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 IDs are not unique
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
No form fields have multiple labels
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
czub.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
czub.cz SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
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
EN
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Czub.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Czech language. Our system also found out that Czub.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.
czub.cz
Open Graph description is not detected on the main page of CZUB. 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: