Tools & Wizards About Us
krab.cz screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

krab.cz

b18.banan.cz - nehostovaná doména

Page Load Speed

2.7 sec in total

First Response

387 ms

Resources Loaded

2.2 sec

Page Rendered

171 ms

krab.cz screenshot

About Website

Visit krab.cz now to see the best up-to-date Krab content and also check out these interesting facts you probably never knew about krab.cz

Přehled českých médií

Visit krab.cz

Key Findings

We analyzed Krab.cz page load time and found that the first response time was 387 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

krab.cz performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.3 s

100/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value1.3 s

100/100

10%

Network Requests Diagram

krab.cz

387 ms

skript.js

286 ms

logo.gif

496 ms

new.gif

377 ms

info.gif

379 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that 56% of them (5 requests) were addressed to the original Krab.cz, 22% (2 requests) were made to Banery.banan.cz and 11% (1 request) were made to Lista.banan.cz. The less responsive or slowest element that took the longest time to load (649 ms) relates to the external source Lista.banan.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 19.0 kB (75%)

Content Size

25.1 kB

After Optimization

6.2 kB

  • HTML
  • JavaScript

In fact, the total size of Krab.cz main page is 25.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 24.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 18.4 kB

  • Original 24.2 kB
  • After minification 23.5 kB
  • After compression 5.8 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 18.4 kB or 76% of the original size.

JavaScript Optimization

-64%

Potential reduce by 610 B

  • Original 946 B
  • After minification 655 B
  • After compression 336 B

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 610 B or 64% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • AJAX
  • Images
  • JavaScript

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Krab. According to our analytics all requests are already optimized.

Network Requests Diagram

krab.cz

krab.cz

387 ms

skript.js

skript.js

286 ms

logo.gif

logo.gif

496 ms

new.gif

new.gif

377 ms

info.gif

info.gif

379 ms

banan_projekty.php

banan_projekty.php

649 ms

banan_120_120_1.php

banan_120_120_1.php

572 ms

dot.asp

dot.asp

216 ms

banan_106_63.gif

banan_106_63.gif

235 ms

Accessibility Review

krab.cz accessibility score

85

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

krab.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

krab.cz SEO score

62

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Krab.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Krab.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

krab.cz

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