Tools & Wizards About Us

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

cnl.sk

LPS | Laboratórium počítačových sietí (KPI, FEI, TUKE)

Page Load Speed

11.2 sec in total

First Response

954 ms

Resources Loaded

5.2 sec

Page Rendered

5 sec

About Website

Click here to check amazing Cnl content for Slovakia. Otherwise, check out these important facts you probably never knew about cnl.sk

LPS (angl. CNL) bolo založené v roku 1995 ako výsledok riešenia výskumných úloh a pilotných projektov v spolupráci s priemyselnou praxou. Laboratórium je často navštevované renomovanými odborníkmi z k...

Visit cnl.sk

Key Findings

We analyzed Cnl.sk page load time and found that the first response time was 954 ms and then it took 10.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

cnl.sk performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

cnl.sk

954 ms

js

72 ms

css

39 ms

global.css

223 ms

front.min.css

324 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 72% of them (61 requests) were addressed to the original Cnl.sk, 24% (20 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Cnl.sk.

Page Optimization Overview & Recommendations

Page size can be reduced by 379.1 kB (2%)

Content Size

16.2 MB

After Optimization

15.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cnl.sk main page is 16.2 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. 65% of websites need less resources to load. Images take 15.8 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 131.5 kB

  • Original 161.3 kB
  • After minification 150.7 kB
  • After compression 29.7 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 131.5 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 241.7 kB

  • Original 15.8 MB
  • After minification 15.6 MB

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. Cnl images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 4.9 kB

  • Original 221.8 kB
  • After minification 221.8 kB
  • After compression 216.9 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

-3%

Potential reduce by 937 B

  • Original 27.7 kB
  • After minification 27.5 kB
  • After compression 26.8 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. Cnl.sk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 31 (49%)

Requests Now

63

After Optimization

32

  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cnl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cnl.sk accessibility score

78

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

cnl.sk best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cnl.sk SEO score

99

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Cnl.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 Cnl.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

Open Graph data is detected on the main page of Cnl. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: