Tools & Wizards About Us
kvmuz.cz screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    81% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

kvmuz.cz

Muzeum Karlovy Vary

Page Load Speed

2.8 sec in total

First Response

701 ms

Resources Loaded

1.8 sec

Page Rendered

276 ms

kvmuz.cz screenshot

About Website

Visit kvmuz.cz now to see the best up-to-date Kvmuz content and also check out these interesting facts you probably never knew about kvmuz.cz

Muzeum je dnes moderním informačním a badatelským centrem pro dokumentaci karlovarského lázeňství a historicko-stavebních památek Karlovarska. Muzeum spravuje další své pobočky v Karlovarském kraji se...

Visit kvmuz.cz

Key Findings

We analyzed Kvmuz.cz page load time and found that the first response time was 701 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

kvmuz.cz performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

kvmuz.cz

701 ms

jquery-1.3.2.js

629 ms

jquery.cookie.js

233 ms

jquery.effects.core.js

348 ms

jquery.slide.js

235 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 93% of them (28 requests) were addressed to the original Kvmuz.cz, 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (701 ms) belongs to the original domain Kvmuz.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 150.2 kB (58%)

Content Size

260.3 kB

After Optimization

110.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kvmuz.cz main page is 260.3 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. 15% of websites need less resources to load. Javascripts take 169.3 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 10.9 kB

  • Original 15.3 kB
  • After minification 14.0 kB
  • After compression 4.4 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 10.9 kB or 71% of the original size.

Image Optimization

-5%

Potential reduce by 3.0 kB

  • Original 60.4 kB
  • After minification 57.4 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. Kvmuz images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 124.6 kB

  • Original 169.3 kB
  • After minification 110.0 kB
  • After compression 44.7 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 124.6 kB or 74% of the original size.

CSS Optimization

-77%

Potential reduce by 11.7 kB

  • Original 15.3 kB
  • After minification 11.1 kB
  • After compression 3.5 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. Kvmuz.cz needs all CSS files to be minified and compressed as it can save up to 11.7 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (37%)

Requests Now

27

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kvmuz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kvmuz.cz

kvmuz.cz

701 ms

jquery-1.3.2.js

jquery-1.3.2.js

629 ms

jquery.cookie.js

jquery.cookie.js

233 ms

jquery.effects.core.js

jquery.effects.core.js

348 ms

jquery.slide.js

jquery.slide.js

235 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

237 ms

externel.js

externel.js

238 ms

default.js

default.js

347 ms

index.js

index.js

371 ms

default.css

default.css

352 ms

index.css

index.css

392 ms

event.css

event.css

460 ms

transitionRight.png

transitionRight.png

121 ms

logo1.gif

logo1.gif

117 ms

logo2.gif

logo2.gif

119 ms

navigationLi.gif

navigationLi.gif

116 ms

fcb.png

fcb.png

117 ms

cesta.png

cesta.png

120 ms

ucimese.gif

ucimese.gif

344 ms

expolarge-3445-bozidarske-raseliniste-1.jpg

expolarge-3445-bozidarske-raseliniste-1.jpg

353 ms

expo-3457-mineral-johanit-jachymov.jpg

expo-3457-mineral-johanit-jachymov.jpg

232 ms

expoBtnMoreOff.png

expoBtnMoreOff.png

233 ms

expo-3450-nejdek-expozice-ii.jpg

expo-3450-nejdek-expozice-ii.jpg

236 ms

expo-3464-hudba2.jpg

expo-3464-hudba2.jpg

236 ms

arrowUp.gif

arrowUp.gif

345 ms

arrowDown.gif

arrowDown.gif

349 ms

ga.js

ga.js

15 ms

__utm.gif

__utm.gif

19 ms

print.css

print.css

120 ms

prettyPhoto.css

prettyPhoto.css

120 ms

Accessibility Review

kvmuz.cz accessibility score

60

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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 [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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

kvmuz.cz best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

kvmuz.cz SEO score

62

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

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

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 Kvmuz.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 Kvmuz.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

kvmuz.cz

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