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Report Summary

About Website

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

Online obchod s českou a zahraniční populární i vážnou hudbou a mluveným slovem (audioknihami) v digitální podobě (MP3) i ve formě fyzických nosičů na CD, LP (vinyl) a DVD. Obsah nabízíme i v jedinečn...

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value1,100 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value11.0 s

21/100

10%

www.supraphonline.cz

805 ms

css

39 ms

front.css

193 ms

extend.css

281 ms

icon

38 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 82% of them (37 requests) were addressed to the original Supraphonline.cz, 7% (3 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (805 ms) belongs to the original domain Supraphonline.cz.

Content Size

851.0 kB

After Optimization

717.9 kB

In fact, the total size of Supraphonline.cz main page is 851.0 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. Images take 479.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 62.9 kB

Original 76.7 kB
After minification 73.9 kB
After compression 13.8 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 62.9 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 24.9 kB

Original 479.0 kB
After minification 454.1 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. Supraphonline images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 17.6 kB

Original 154.2 kB
After minification 154.2 kB
After compression 136.6 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 17.6 kB or 11% of the original size.

CSS Optimization

-20%

Potential reduce by 27.6 kB

Original 141.1 kB
After minification 141.1 kB
After compression 113.4 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. Supraphonline.cz needs all CSS files to be minified and compressed as it can save up to 27.6 kB or 20% of the original size.

Requests Now

After Optimization

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supraphonline. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

robots.txt is not valid

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

CS
Language Claimed

CS
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Supraphonline.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Supraphonline.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

supraphonline.cz

Open Graph data is detected on the main page of Supraphonline. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Supraphonline.cz

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)