Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 65% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 83

    SEO

    Google-friendlier than
    54% of websites

ic.cz

Internet Centrum

Page Load Speed

15.7 sec in total

First Response

542 ms

Resources Loaded

9.3 sec

Page Rendered

5.8 sec

ic.cz screenshot

About Website

Visit ic.cz now to see the best up-to-date Ic content for Czech Republic and also check out these interesting facts you probably never knew about ic.cz

Visit ic.cz

Key Findings

We analyzed Ic.cz page load time and found that the first response time was 542 ms and then it took 15.1 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

ic.cz performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value1,110 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value9.4 s

30/100

10%

Network Requests Diagram

ic.cz

542 ms

client.ic.cz

1310 ms

bootstrap.min.css

539 ms

font-awesome.min.css

370 ms

overrides.css

335 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Ic.cz, 78% (21 requests) were made to Client.ic.cz and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5.2 sec) relates to the external source Client.ic.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 504.7 kB (68%)

Content Size

739.1 kB

After Optimization

234.4 kB

In fact, the total size of Ic.cz main page is 739.1 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. Javascripts take 470.4 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 9.3 kB

  • Original 12.5 kB
  • After minification 9.1 kB
  • After compression 3.2 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 3.5 kB, which is 28% 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 9.3 kB or 74% of the original size.

Image Optimization

-9%

Potential reduce by 5.8 kB

  • Original 62.7 kB
  • After minification 56.9 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. Ic images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 330.4 kB

  • Original 470.4 kB
  • After minification 459.7 kB
  • After compression 140.0 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 330.4 kB or 70% of the original size.

CSS Optimization

-82%

Potential reduce by 159.2 kB

  • Original 193.5 kB
  • After minification 178.4 kB
  • After compression 34.3 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. Ic.cz needs all CSS files to be minified and compressed as it can save up to 159.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (55%)

Requests Now

22

After Optimization

10

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ic.cz accessibility score

84

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Best Practices

ic.cz best practices score

75

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

High

Missing source maps for large first-party JavaScript

SEO Factors

ic.cz SEO score

83

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

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ic.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Ic.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.

Social Sharing Optimization

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