Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

serialzone.cz

SerialZone.cz – nejzábavnější seriálový web | SerialZone.cz

Page Load Speed

23.3 sec in total

First Response

384 ms

Resources Loaded

21.7 sec

Page Rendered

1.2 sec

serialzone.cz screenshot

About Website

Click here to check amazing Serial Zone content for Czech Republic. Otherwise, check out these important facts you probably never knew about serialzone.cz

Seriály z celého světa na jednom místě. Spousty informací a novinek o všech myslitelných seriálech. Kalendář vysílaných seriálů, osobní watchlist. A navíc databáze českých titulků k seriálům.

Visit serialzone.cz

Key Findings

We analyzed Serialzone.cz page load time and found that the first response time was 384 ms and then it took 22.9 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

serialzone.cz performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value21.2 s

0/100

10%

TBT (Total Blocking Time)

Value10,360 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.109

87/100

15%

TTI (Time to Interactive)

Value59.7 s

0/100

10%

Network Requests Diagram

serialzone.cz

384 ms

www.serialzone.cz

935 ms

css-1709135910.css

344 ms

menu.css

287 ms

css

43 ms

Our browser made a total of 167 requests to load all elements on the main page. We found that 33% of them (55 requests) were addressed to the original Serialzone.cz, 5% (8 requests) were made to Live.rezync.com and 5% (8 requests) were made to Etargetcdn.com. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 280.2 kB (13%)

Content Size

2.2 MB

After Optimization

2.0 MB

In fact, the total size of Serialzone.cz main page is 2.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 55.1 kB

  • Original 68.2 kB
  • After minification 55.1 kB
  • After compression 13.1 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 13.1 kB, which is 19% 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 55.1 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 36.2 kB

  • Original 1.3 MB
  • After minification 1.2 MB

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. Serial Zone images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 172.1 kB

  • Original 789.5 kB
  • After minification 789.4 kB
  • After compression 617.4 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 172.1 kB or 22% of the original size.

CSS Optimization

-15%

Potential reduce by 16.8 kB

  • Original 113.2 kB
  • After minification 113.2 kB
  • After compression 96.4 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. Serialzone.cz needs all CSS files to be minified and compressed as it can save up to 16.8 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 87 (61%)

Requests Now

143

After Optimization

56

The browser has sent 143 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Serial Zone. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

serialzone.cz accessibility score

77

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

serialzone.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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

serialzone.cz SEO score

91

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Serialzone.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 Serialzone.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 data is detected on the main page of Serial Zone. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: