5.3 sec in total
388 ms
4.7 sec
192 ms
Visit sostrinec.cz now to see the best up-to-date Sostrinec content for Czech Republic and also check out these interesting facts you probably never knew about sostrinec.cz
Střední odborná škola Třineckých železáren (SOŠ TŽ) je školskou právnickou osobou zřízenou akciovou společností TŘINECKÉ ŽELEZÁRNY (TŽ).
Visit sostrinec.czWe analyzed Sostrinec.cz page load time and found that the first response time was 388 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
sostrinec.cz performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value12.6 s
0/100
25%
Value9.5 s
11/100
10%
Value3,110 ms
2/100
30%
Value0.314
37/100
15%
Value26.1 s
0/100
10%
388 ms
947 ms
2107 ms
2183 ms
2232 ms
Our browser made a total of 32 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Sostrinec.cz, 97% (31 requests) were made to E.sostrinec.cz. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source E.sostrinec.cz.
Page size can be reduced by 371.9 kB (30%)
1.2 MB
874.0 kB
In fact, the total size of Sostrinec.cz main page is 1.2 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. 30% of websites need less resources to load. Images take 780.1 kB which makes up the majority of the site volume.
Potential reduce by 17.1 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 4.5 kB, which is 21% 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 17.1 kB or 80% of the original size.
Potential reduce by 37.0 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. Sostrinec images are well optimized though.
Potential reduce by 291.4 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 291.4 kB or 71% of the original size.
Potential reduce by 26.3 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. Sostrinec.cz needs all CSS files to be minified and compressed as it can save up to 26.3 kB or 84% of the original size.
Number of requests can be reduced by 10 (34%)
29
19
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sostrinec. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.
sostrinec.cz
388 ms
e.sostrinec.cz
947 ms
jcemediabox.css
2107 ms
style.css
2183 ms
mootools-core.js
2232 ms
core.js
2122 ms
caption.js
2120 ms
jcemediabox.js
2210 ms
mootools-more.js
2544 ms
defaut.css
2269 ms
scroll.js
2261 ms
jquery.js
2404 ms
superfish.js
2327 ms
hover.js
2344 ms
innerfade.js
2382 ms
faded.js
2385 ms
popup.html
121 ms
tooltip.html
121 ms
b1.jpg
669 ms
logo.jpg
450 ms
search.png
239 ms
slide1.jpg
558 ms
slide2.jpg
241 ms
slide3.jpg
774 ms
slide4.jpg
571 ms
slide5.jpg
462 ms
slide-normal.jpg
569 ms
left-centerr.png
577 ms
left-topr.png
674 ms
left-bottomr.png
687 ms
top.png
686 ms
slide-hover.jpg
695 ms
sostrinec.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
sostrinec.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
sostrinec.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Sostrinec.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 Sostrinec.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.
sostrinec.cz
Open Graph description is not detected on the main page of Sostrinec. 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: