Access tridnistranky.cz. Třídní stránky jednoduše a zdarma

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value3.3 s

90/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value3.9 s

88/100

10%

tridnistranky.cz

107 ms

bootstrap_index.css

106 ms

bootstrap-responsive.css

176 ms

font-awesome.css

63 ms

jquery-ui-1.10.1.custom.css

194 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 11% of them (3 requests) were addressed to the original Tridnistranky.cz, 85% (23 requests) were made to 20240822t124453-dot-tridnistranky2.appspot.com and 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (389 ms) relates to the external source 20240822t124453-dot-tridnistranky2.appspot.com.

Content Size

770.1 kB

After Optimization

673.5 kB

In fact, the total size of Tridnistranky.cz main page is 770.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 530.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 19.8 kB

Original 24.2 kB
After minification 15.6 kB
After compression 4.4 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 8.6 kB, which is 36% 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 19.8 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 16.1 kB

Original 530.6 kB
After minification 514.5 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. Tridnistranky images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 48.8 kB

Original 157.9 kB
After minification 157.9 kB
After compression 109.1 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 48.8 kB or 31% of the original size.

CSS Optimization

-21%

Potential reduce by 11.9 kB

Original 57.4 kB
After minification 57.4 kB
After compression 45.5 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. Tridnistranky.cz needs all CSS files to be minified and compressed as it can save up to 11.9 kB or 21% of the original size.

Requests Now

After Optimization

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tridnistranky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.