3.2 sec in total
612 ms
2.4 sec
216 ms
Welcome to just4web.cz homepage info - get ready to check Just 4 Web best content for Czech Republic right away, or after learning these important things about just4web.cz
Webové stránky tvoříme přes 10 let. ✅ Přivádíme návštěvníky, ze kterých se stanou zákazníci. ✅ Jsme vašim partnerem ve světě online.
Visit just4web.czWe analyzed Just4web.cz page load time and found that the first response time was 612 ms and then it took 2.6 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.
just4web.cz performance score
name
value
score
weighting
Value7.0 s
1/100
10%
Value12.3 s
0/100
25%
Value10.1 s
9/100
10%
Value1,440 ms
15/100
30%
Value0.068
96/100
15%
Value15.0 s
8/100
10%
612 ms
360 ms
357 ms
362 ms
364 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 37% of them (30 requests) were addressed to the original Just4web.cz, 31% (25 requests) were made to Maps.google.com and 11% (9 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Just4web.cz.
Page size can be reduced by 694.2 kB (46%)
1.5 MB
811.4 kB
In fact, the total size of Just4web.cz main page is 1.5 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. 55% of websites need less resources to load. Javascripts take 851.8 kB which makes up the majority of the site volume.
Potential reduce by 43.0 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 43.0 kB or 81% of the original size.
Potential reduce by 47.7 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. Just 4 Web images are well optimized though.
Potential reduce by 559.6 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 559.6 kB or 66% of the original size.
Potential reduce by 43.8 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. Just4web.cz needs all CSS files to be minified and compressed as it can save up to 43.8 kB or 80% of the original size.
Number of requests can be reduced by 36 (48%)
75
39
The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Just 4 Web. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
{{url}}
{{time}} ms
just4web.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.
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
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
Links do not have a discernible name
just4web.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
just4web.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
Tap targets are not sized appropriately
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Just4web.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Just4web.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.
{{og_description}}
just4web.cz
Open Graph description is not detected on the main page of Just 4 Web. 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: