Tools & Wizards About Us
museum.cz screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

museum.cz

MUSEUM.CZ - rozcestník mezi českými muzei, muzea v ČR

Page Load Speed

4.5 sec in total

First Response

373 ms

Resources Loaded

3.5 sec

Page Rendered

643 ms

museum.cz screenshot

About Website

Visit museum.cz now to see the best up-to-date MUSEUM content for Czech Republic and also check out these interesting facts you probably never knew about museum.cz

Museum.cz nabízí přehled a detailní informace o všech dostupných muzeích které se nacházají v České republice, dále aktuality z oblasti muzeí, informace a muzejních akcích, aktualizované fotografie mu...

Visit museum.cz

Key Findings

We analyzed Museum.cz page load time and found that the first response time was 373 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

museum.cz performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value590 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0.087

93/100

15%

TTI (Time to Interactive)

Value7.4 s

48/100

10%

Network Requests Diagram

museum.cz

373 ms

www.museum.cz

800 ms

styles.css

762 ms

map.js

882 ms

cookieconsent.latest.min.js

30 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 62% of them (44 requests) were addressed to the original Museum.cz, 14% (10 requests) were made to Static.xx.fbcdn.net and 8% (6 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Museum.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.9 kB (18%)

Content Size

759.6 kB

After Optimization

624.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Museum.cz main page is 759.6 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. 50% of websites need less resources to load. Images take 669.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 25.7 kB

  • Original 33.9 kB
  • After minification 27.6 kB
  • After compression 8.3 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 6.3 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 25.7 kB or 76% of the original size.

Image Optimization

-12%

Potential reduce by 83.0 kB

  • Original 669.9 kB
  • After minification 586.9 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, MUSEUM needs image optimization as it can save up to 83.0 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

-32%

Potential reduce by 13.0 kB

  • Original 40.0 kB
  • After minification 39.2 kB
  • After compression 27.1 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 13.0 kB or 32% of the original size.

CSS Optimization

-84%

Potential reduce by 13.2 kB

  • Original 15.7 kB
  • After minification 11.2 kB
  • After compression 2.5 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. Museum.cz needs all CSS files to be minified and compressed as it can save up to 13.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (25%)

Requests Now

68

After Optimization

51

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MUSEUM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

museum.cz

museum.cz

373 ms

www.museum.cz

www.museum.cz

800 ms

styles.css

styles.css

762 ms

map.js

map.js

882 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

30 ms

search.js

search.js

1075 ms

script.js

script.js

329 ms

analytics.js

analytics.js

108 ms

top_bg.png

top_bg.png

251 ms

header.png

header.png

696 ms

top_logo.png

top_logo.png

147 ms

logo.png

logo.png

261 ms

body.png

body.png

234 ms

top_in_bg.png

top_in_bg.png

675 ms

header_muzeum_kraje.png

header_muzeum_kraje.png

466 ms

header_dnesni_muzeum.png

header_dnesni_muzeum.png

472 ms

block_bg.png

block_bg.png

466 ms

label.png

label.png

464 ms

map2.png

map2.png

724 ms

map.png

map.png

611 ms

show_museum.png

show_museum.png

504 ms

img.php

img.php

668 ms

img.php

img.php

644 ms

img.php

img.php

754 ms

img.php

img.php

779 ms

img.php

img.php

825 ms

add.png

add.png

1148 ms

last_comments.png

last_comments.png

803 ms

right_bottom.png

right_bottom.png

967 ms

more_actuality.png

more_actuality.png

868 ms

muzea.png

muzea.png

901 ms

plus.png

plus.png

915 ms

doporucujeme.png

doporucujeme.png

940 ms

img.php

img.php

1045 ms

show_museum_dark.png

show_museum_dark.png

1018 ms

img.php

img.php

1091 ms

img.php

img.php

1179 ms

footer_logo.png

footer_logo.png

1128 ms

cookie

cookie

424 ms

context

context

138 ms

comment_left.png

comment_left.png

1041 ms

comment_right.png

comment_right.png

1087 ms

context

context

238 ms

collect

collect

15 ms

actuality_header.png

actuality_header.png

1082 ms

search_bg.png

search_bg.png

1112 ms

search_text.png

search_text.png

1117 ms

search_submit.png

search_submit.png

1130 ms

region.png

region.png

1161 ms

context

context

250 ms

likebox.php

likebox.php

152 ms

block_dark_bg.png

block_dark_bg.png

1072 ms

cimage2.png

cimage2.png

229 ms

footer.png

footer.png

1106 ms

410ucuAGgaJ.css

410ucuAGgaJ.css

58 ms

tSbl8xBI27R.css

tSbl8xBI27R.css

46 ms

1kPfZUdGrka.js

1kPfZUdGrka.js

70 ms

Yuj_Y8xNH2C.js

Yuj_Y8xNH2C.js

93 ms

Mpe38fuBVZ2.js

Mpe38fuBVZ2.js

64 ms

n8qIhCw3vMx.js

n8qIhCw3vMx.js

64 ms

296349_204331196303193_1721039283_n.jpg

296349_204331196303193_1721039283_n.jpg

238 ms

11052037_988766201135997_3804639030333503604_n.jpg

11052037_988766201135997_3804639030333503604_n.jpg

26 ms

150097_448124361882302_175696944_n.jpg

150097_448124361882302_175696944_n.jpg

31 ms

12278685_1042897045762257_6278806699213135053_n.jpg

12278685_1042897045762257_6278806699213135053_n.jpg

32 ms

181888_554493674578766_740492049_n.jpg

181888_554493674578766_740492049_n.jpg

28 ms

528579_3277499351302_1256298001_n.jpg

528579_3277499351302_1256298001_n.jpg

29 ms

wL6VQj7Ab77.png

wL6VQj7Ab77.png

25 ms

s7jcwEQH7Sx.png

s7jcwEQH7Sx.png

26 ms

115 ms

VXcANLwwL5J.js

VXcANLwwL5J.js

5 ms

AmlxWlqMvlv.js

AmlxWlqMvlv.js

6 ms

Accessibility Review

museum.cz accessibility score

68

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

museum.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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

museum.cz SEO score

77

Search Engine Optimization Advices

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 Museum.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 Museum.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

museum.cz

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