24.7 sec in total
302 ms
22.9 sec
1.5 sec
Click here to check amazing TZB Info content for Czech Republic. Otherwise, check out these important facts you probably never knew about tzb-info.cz
Odborný web pro stavebnictví, technická zařízení budov a úspory energií. To nejlepí o stavbě a vytápění, větrání, klimatizaci, vodě a kanalizaci, obnovitelné energii a facility managementu. Oborová d...
Visit tzb-info.czWe analyzed Tzb-info.cz page load time and found that the first response time was 302 ms and then it took 24.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
tzb-info.cz performance score
name
value
score
weighting
Value7.3 s
1/100
10%
Value7.6 s
4/100
25%
Value44.2 s
0/100
10%
Value1,470 ms
14/100
30%
Value0.186
66/100
15%
Value15.1 s
7/100
10%
302 ms
388 ms
815 ms
31 ms
48 ms
Our browser made a total of 177 requests to load all elements on the main page. We found that 57% of them (101 requests) were addressed to the original Tzb-info.cz, 10% (18 requests) were made to Tpc.googlesyndication.com and 10% (17 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Toplist.cz.
Page size can be reduced by 403.8 kB (18%)
2.2 MB
1.8 MB
In fact, the total size of Tzb-info.cz main page is 2.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 120.9 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 120.9 kB or 83% of the original size.
Potential reduce by 201.1 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, TZB Info needs image optimization as it can save up to 201.1 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 81.8 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 81.8 kB or 25% of the original size.
Number of requests can be reduced by 58 (36%)
160
102
The browser has sent 160 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TZB Info. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
tzb-info.cz
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tzb-info.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
Form elements do not have associated labels
Links do not have a discernible name
tzb-info.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
tzb-info.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 doesn't use legible font sizes
N/A
CS
ISO-8859-2
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tzb-info.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Tzb-info.cz main page’s claimed encoding is iso-8859-2. 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.
tzb-info.cz
Open Graph data is detected on the main page of TZB Info. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: