Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

muzeumkarlazemana.cz

Naplánujte svou návštěvu • Filmové Muzeum Karla Zemana

Page Load Speed

5.5 sec in total

First Response

326 ms

Resources Loaded

4.9 sec

Page Rendered

236 ms

muzeumkarlazemana.cz screenshot

About Website

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

Navštivte interaktivní expozici filmového muzea, kde Vám moderní počítačové technologie představí celoživotní dílo světově uznávaného filmového tvůrce Karla Zemana a jeho filmové triky, kterými prosla...

Visit muzeumkarlazemana.cz

Key Findings

We analyzed Muzeumkarlazemana.cz page load time and found that the first response time was 326 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

muzeumkarlazemana.cz performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.175

69/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

muzeumkarlazemana.cz

326 ms

en

681 ms

jquery.min.js

93 ms

jquery.no-conflict.js

138 ms

modal.css

218 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 87% of them (83 requests) were addressed to the original Muzeumkarlazemana.cz, 4% (4 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Muzeumkarlazemana.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 830.4 kB (46%)

Content Size

1.8 MB

After Optimization

987.8 kB

In fact, the total size of Muzeumkarlazemana.cz main page is 1.8 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. 45% of websites need less resources to load. Images take 781.6 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 65.9 kB

  • Original 77.2 kB
  • After minification 59.3 kB
  • After compression 11.3 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 17.9 kB, which is 23% 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 65.9 kB or 85% of the original size.

Image Optimization

-10%

Potential reduce by 80.3 kB

  • Original 781.6 kB
  • After minification 701.3 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. Muzeum Karla Zemana images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 472.7 kB

  • Original 707.2 kB
  • After minification 675.2 kB
  • After compression 234.5 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 472.7 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 211.6 kB

  • Original 252.3 kB
  • After minification 200.7 kB
  • After compression 40.7 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. Muzeumkarlazemana.cz needs all CSS files to be minified and compressed as it can save up to 211.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 53 (60%)

Requests Now

89

After Optimization

36

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Muzeum Karla Zemana. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

muzeumkarlazemana.cz accessibility score

80

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

muzeumkarlazemana.cz best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

muzeumkarlazemana.cz SEO score

99

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

    CS

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Muzeumkarlazemana.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 English language. Our system also found out that Muzeumkarlazemana.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 Muzeum Karla Zemana. 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: