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4packy.cz screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

4packy.cz

Page Load Speed

293 ms in total

First Response

146 ms

Resources Loaded

147 ms

Page Rendered

0 ms

4packy.cz screenshot

About Website

Click here to check amazing 4 Packy content. Otherwise, check out these important facts you probably never knew about 4packy.cz

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Key Findings

We analyzed 4packy.cz page load time and found that the first response time was 146 ms and then it took 147 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

4packy.cz performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value820 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value12.9 s

13/100

10%

Network Requests Diagram

4packy.cz

146 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to 4packy.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (146 ms) belongs to the original domain 4packy.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 227.6 kB (43%)

Content Size

528.8 kB

After Optimization

301.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 4packy.cz main page is 528.8 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 212.8 kB which makes up the majority of the site volume.

HTML Optimization

-17%

Potential reduce by 29 B

  • Original 173 B
  • After minification 173 B
  • After compression 144 B

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 29 B or 17% of the original size.

Image Optimization

-5%

Potential reduce by 11.6 kB

  • Original 212.8 kB
  • After minification 201.2 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. 4 Packy images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 128.8 kB

  • Original 210.1 kB
  • After minification 203.6 kB
  • After compression 81.3 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 128.8 kB or 61% of the original size.

CSS Optimization

-83%

Potential reduce by 87.2 kB

  • Original 105.7 kB
  • After minification 85.1 kB
  • After compression 18.4 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. 4packy.cz needs all CSS files to be minified and compressed as it can save up to 87.2 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

4packy.cz

4packy.cz

146 ms

Accessibility Review

4packy.cz accessibility score

97

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.

Best Practices

4packy.cz best practices score

83

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

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

4packy.cz SEO score

91

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 4packy.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that 4packy.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

4packy.cz

Open Graph description is not detected on the main page of 4 Packy. 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: