Report Summary

  • 54

    Performance

    Renders faster than
    72% 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

  • 75

    SEO

    Google-friendlier than
    32% of websites

knihykestazeni.cz

Forpsi.com

Page Load Speed

3.4 sec in total

First Response

434 ms

Resources Loaded

2.8 sec

Page Rendered

218 ms

knihykestazeni.cz screenshot

About Website

Welcome to knihykestazeni.cz homepage info - get ready to check Knihykestazeni best content for Czech Republic right away, or after learning these important things about knihykestazeni.cz

Knihy ke stazeni zdarma. Na tomto webu je mozne stahnout e-knihy zdarma. Muzete jednotlive knihy hodnotit, komentovat nebo si vytvaret knihovnu.

Visit knihykestazeni.cz

Key Findings

We analyzed Knihykestazeni.cz page load time and found that the first response time was 434 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

knihykestazeni.cz performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.6 s

57/100

10%

Network Requests Diagram

knihykestazeni.cz

434 ms

www.knihykestazeni.cz

1207 ms

base.css

215 ms

aktual.css

215 ms

eval.css

217 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 84% of them (21 requests) were addressed to the original Knihykestazeni.cz, 8% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Getgamers.eu. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Knihykestazeni.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.0 kB (32%)

Content Size

89.4 kB

After Optimization

60.4 kB

In fact, the total size of Knihykestazeni.cz main page is 89.4 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. Only 10% of websites need less resources to load. Images take 38.2 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 12.8 kB

  • Original 18.5 kB
  • After minification 16.2 kB
  • After compression 5.7 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. This page needs HTML code to be minified as it can gain 2.3 kB, which is 12% 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 12.8 kB or 69% of the original size.

Image Optimization

-13%

Potential reduce by 4.9 kB

  • Original 38.2 kB
  • After minification 33.3 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, Knihykestazeni needs image optimization as it can save up to 4.9 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-18%

Potential reduce by 4.2 kB

  • Original 23.6 kB
  • After minification 22.1 kB
  • After compression 19.4 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 4.2 kB or 18% of the original size.

CSS Optimization

-78%

Potential reduce by 7.1 kB

  • Original 9.1 kB
  • After minification 6.4 kB
  • After compression 2.0 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. Knihykestazeni.cz needs all CSS files to be minified and compressed as it can save up to 7.1 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

22

After Optimization

22

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Knihykestazeni. According to our analytics all requests are already optimized.

Accessibility Review

knihykestazeni.cz accessibility score

73

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

knihykestazeni.cz best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

knihykestazeni.cz SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Knihykestazeni.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Knihykestazeni.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 Knihykestazeni. 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: