Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

e-butik.cz

Plavky | Spodn? pr?dlo | Cyklistick? dresy a fitness oble?en? | E-BUTIK.cz

Page Load Speed

22.4 sec in total

First Response

354 ms

Resources Loaded

22 sec

Page Rendered

104 ms

e-butik.cz screenshot

About Website

Click here to check amazing E BUTIK content. Otherwise, check out these important facts you probably never knew about e-butik.cz

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Key Findings

We analyzed E-butik.cz page load time and found that the first response time was 354 ms and then it took 22.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

e-butik.cz performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

e-butik.cz

354 ms

e-butik.cz

400 ms

www.e-butik.cz

292 ms

www.e-butik.cz

871 ms

stylesheet.css

103 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 98% of them (59 requests) were addressed to the original E-butik.cz, 2% (1 request) were made to Toplist.cz. The less responsive or slowest element that took the longest time to load (19.6 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.7 kB (44%)

Content Size

229.2 kB

After Optimization

127.6 kB

In fact, the total size of E-butik.cz main page is 229.2 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. 20% of websites need less resources to load. Images take 122.9 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 83.8 kB

  • Original 94.6 kB
  • After minification 91.7 kB
  • After compression 10.9 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 83.8 kB or 89% of the original size.

Image Optimization

-12%

Potential reduce by 14.3 kB

  • Original 122.9 kB
  • After minification 108.6 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, E BUTIK needs image optimization as it can save up to 14.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 2.8 kB

  • Original 9.3 kB
  • After minification 9.3 kB
  • After compression 6.5 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 2.8 kB or 30% of the original size.

CSS Optimization

-34%

Potential reduce by 799 B

  • Original 2.4 kB
  • After minification 2.4 kB
  • After compression 1.6 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. E-butik.cz needs all CSS files to be minified and compressed as it can save up to 799 B or 34% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (16%)

Requests Now

55

After Optimization

46

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of E BUTIK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

e-butik.cz accessibility score

75

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 valid value for its [lang] attribute.

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

Best Practices

e-butik.cz best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

e-butik.cz SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CZ

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise E-butik.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 language. Our system also found out that E-butik.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

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