2.6 sec in total
337 ms
2 sec
240 ms
Visit za7.cz now to see the best up-to-date ZA7 content and also check out these interesting facts you probably never knew about za7.cz
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Visit za7.czWe analyzed Za7.cz page load time and found that the first response time was 337 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
za7.cz performance score
name
value
score
weighting
Value2.4 s
70/100
10%
Value5.2 s
23/100
25%
Value7.0 s
33/100
10%
Value10 ms
100/100
30%
Value0.486
17/100
15%
Value8.4 s
39/100
10%
337 ms
449 ms
213 ms
311 ms
317 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that 92% of them (35 requests) were addressed to the original Za7.cz, 5% (2 requests) were made to Ssl.google-analytics.com and 3% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (895 ms) belongs to the original domain Za7.cz.
Page size can be reduced by 1.6 MB (86%)
1.8 MB
254.0 kB
In fact, the total size of Za7.cz main page is 1.8 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. 35% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 8.4 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. This page needs HTML code to be minified as it can gain 2.3 kB, which is 20% 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 8.4 kB or 72% of the original size.
Potential reduce by 1.6 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. Obviously, ZA7 needs image optimization as it can save up to 1.6 MB or 91% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 66 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 32 B
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. Za7.cz has all CSS files already compressed.
Number of requests can be reduced by 4 (11%)
35
31
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZA7. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
za7.cz
337 ms
za7.cz
449 ms
bootstrap.min.css
213 ms
font-awesome.min.css
311 ms
custom.min.css
317 ms
jquery-1.10.2.min.js
432 ms
bootstrap.min.js
348 ms
jquery.cycle2.min.js
348 ms
ga.js
35 ms
bg.jpg
219 ms
menu_center_bg.png
152 ms
logo.png
319 ms
1.png
626 ms
2.png
522 ms
3.png
531 ms
4.png
717 ms
5.png
419 ms
bg_stripe_right.png
423 ms
bg_stripe_left.png
522 ms
bg_stripe_center.png
527 ms
refer5.jpg
627 ms
refer2.jpg
625 ms
refer3.jpg
631 ms
refer4.jpg
635 ms
zab5.png
730 ms
zab3.png
728 ms
zab2.png
730 ms
zab9.png
734 ms
zab1.png
739 ms
zab4.png
817 ms
zab7.png
829 ms
zab8.png
833 ms
zab10.png
834 ms
zab6.png
838 ms
footer_logo.png
843 ms
fontawesome-webfont.woff
895 ms
inpage_linkid.js
22 ms
__utm.gif
12 ms
za7.cz accessibility score
za7.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
Page has valid source maps
za7.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
Tap targets are not sized appropriately
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Za7.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 Za7.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.
za7.cz
Open Graph description is not detected on the main page of ZA7. 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: