Tools & Wizards About Us
tsus.sk screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    70% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

tsus.sk

TECHNICKÝ A SKÚŠOBNÝ ÚSTAV STAVEBNÝ, n. o. - certifikácia, meranie, skúšanie, inšpekcie, metrológia

Page Load Speed

2.6 sec in total

First Response

461 ms

Resources Loaded

1.7 sec

Page Rendered

470 ms

tsus.sk screenshot

About Website

Visit tsus.sk now to see the best up-to-date Tsus content for Slovakia and also check out these interesting facts you probably never knew about tsus.sk

Technický skúšobný ústav stavebný TSÚS, n. o zabezpečuje činnosť v oblastiach certifikácia, technické posudzovanie, posudzovanie zhody, skúšky a výpočty, vydávanie licencií, znalectvo a diagnostikamer...

Visit tsus.sk

Key Findings

We analyzed Tsus.sk page load time and found that the first response time was 461 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

tsus.sk performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value4.4 s

75/100

10%

TBT (Total Blocking Time)

Value760 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

Network Requests Diagram

tsus.sk

461 ms

www.tsus.sk

344 ms

jquery.js

241 ms

lightbox.js

220 ms

lightbox.css

217 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 92% of them (23 requests) were addressed to the original Tsus.sk, 8% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (573 ms) belongs to the original domain Tsus.sk.

Page Optimization Overview & Recommendations

Page size can be reduced by 45.5 kB (15%)

Content Size

312.4 kB

After Optimization

266.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tsus.sk main page is 312.4 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. 20% of websites need less resources to load. Images take 226.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 13.6 kB

  • Original 17.7 kB
  • After minification 11.9 kB
  • After compression 4.1 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 5.8 kB, which is 33% 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 13.6 kB or 77% of the original size.

Image Optimization

-11%

Potential reduce by 25.6 kB

  • Original 226.9 kB
  • After minification 201.3 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, Tsus needs image optimization as it can save up to 25.6 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-4%

Potential reduce by 2.5 kB

  • Original 61.3 kB
  • After minification 61.3 kB
  • After compression 58.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-59%

Potential reduce by 3.8 kB

  • Original 6.5 kB
  • After minification 6.5 kB
  • After compression 2.7 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. Tsus.sk needs all CSS files to be minified and compressed as it can save up to 3.8 kB or 59% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (43%)

Requests Now

23

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tsus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tsus.sk

tsus.sk

461 ms

www.tsus.sk

www.tsus.sk

344 ms

jquery.js

jquery.js

241 ms

lightbox.js

lightbox.js

220 ms

lightbox.css

lightbox.css

217 ms

tsus-main.css

tsus-main.css

224 ms

SpryMenuBarHorizontal.css

SpryMenuBarHorizontal.css

222 ms

SpryMenuBar.js

SpryMenuBar.js

233 ms

close.png

close.png

112 ms

loading.gif

loading.gif

152 ms

prev.png

prev.png

153 ms

next.png

next.png

152 ms

logo_tsus.png

logo_tsus.png

151 ms

tsus-logo-text.png

tsus-logo-text.png

150 ms

facebook-15_15.png

facebook-15_15.png

213 ms

flag_sk.gif

flag_sk.gif

222 ms

flag_en.gif

flag_en.gif

223 ms

budova-tsus.jpg

budova-tsus.jpg

546 ms

point.jpg

point.jpg

243 ms

eae_award2021_small.png

eae_award2021_small.png

573 ms

logo_tsus_footer.png

logo_tsus_footer.png

318 ms

analytics.js

analytics.js

48 ms

SpryMenuBarDownHover.gif

SpryMenuBarDownHover.gif

257 ms

SpryMenuBarRightHover.gif

SpryMenuBarRightHover.gif

261 ms

collect

collect

67 ms

Accessibility Review

tsus.sk accessibility score

73

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

tsus.sk best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tsus.sk SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    SK

  • Language Claimed

    SK

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tsus.sk can be misinterpreted by Google and other search engines. Our service has detected that Slovak is used on the page, and it matches the claimed language. Our system also found out that Tsus.sk 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.

Social Sharing Optimization

tsus.sk

Open Graph description is not detected on the main page of Tsus. 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: