3.9 sec in total
680 ms
2.9 sec
260 ms
Welcome to jzracing.cz homepage info - get ready to check Jzracing best content right away, or after learning these important things about jzracing.cz
MECHANICKÉ ČIŠTĚNÍ FILTRŮ DPF A KATALYZÁTORŮ SCR
Visit jzracing.czWe analyzed Jzracing.cz page load time and found that the first response time was 680 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
jzracing.cz performance score
name
value
score
weighting
Value4.3 s
17/100
10%
Value8.9 s
1/100
25%
Value8.1 s
21/100
10%
Value230 ms
87/100
30%
Value0.034
100/100
15%
Value8.6 s
37/100
10%
680 ms
248 ms
316 ms
22 ms
21 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 30% of them (16 requests) were addressed to the original Jzracing.cz, 13% (7 requests) were made to Static-cdn1.webnode.com and 9% (5 requests) were made to Files.jzracing.cz. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Files.jzracing.cz.
Page size can be reduced by 600.0 kB (56%)
1.1 MB
480.0 kB
In fact, the total size of Jzracing.cz main page is 1.1 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. 70% of websites need less resources to load. Images take 409.4 kB which makes up the majority of the site volume.
Potential reduce by 28.1 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 4.6 kB, which is 13% 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 28.1 kB or 77% of the original size.
Potential reduce by 103.4 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, Jzracing needs image optimization as it can save up to 103.4 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 256.5 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 256.5 kB or 68% of the original size.
Potential reduce by 212.0 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. Jzracing.cz needs all CSS files to be minified and compressed as it can save up to 212.0 kB or 83% of the original size.
Number of requests can be reduced by 27 (54%)
50
23
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jzracing. 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 4 to 1 for CSS and as a result speed up the page load time.
www.jzracing.cz
680 ms
system.style.css
248 ms
style.css
316 ms
functions.js
22 ms
frontend.package.1-2-189.js
21 ms
Menu.js
18 ms
analytics.js
6 ms
print.css
29 ms
collect
14 ms
jz%20racing%20final.png
746 ms
kubat.gif
587 ms
poll.png
31 ms
logo-title.png
550 ms
hollen_logo_tr.gif
605 ms
10536950_full.gif
617 ms
atros.gif
606 ms
50000000.png
1434 ms
bunda_1.jpg
774 ms
bunda_3.jpg
778 ms
triko_d%C3%A1msk%C3%A9_1.jpg
792 ms
site_bg.png
214 ms
box_bg.png
134 ms
box_title.png
289 ms
contact_title.png
267 ms
tqNyLKc9IX8
94 ms
footerButtonWebnodeHover.png
15 ms
menu_bg.png
396 ms
menu_separator.png
397 ms
footer.png
431 ms
search.png
430 ms
btn.jpg
431 ms
homepage.png
430 ms
sitemap.png
429 ms
rss.png
429 ms
print.png
532 ms
www-embed-player-vflfNyN_r.css
29 ms
www-embed-player.js
132 ms
base.js
175 ms
like.php
382 ms
Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js
232 ms
ad_status.js
72 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
60 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
63 ms
qeKvIRsJabD.js
80 ms
LVx-xkvaJ0b.png
62 ms
loading.gif
9 ms
menu_hover.png
12 ms
submenu_bg.png
11 ms
li.png
10 ms
footerButtonWebnode.png
6 ms
footerButton.png
16 ms
footerButtonHover.png
17 ms
footerBubble.png
6 ms
jzracing.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
Buttons do not have an accessible name
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.
jzracing.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
jzracing.cz SEO score
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 Jzracing.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 Jzracing.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.
jzracing.cz
Open Graph description is not detected on the main page of Jzracing. 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: