Tools & Wizards About Us
dvorakovapraha.cz screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

dvorakovapraha.cz

International Music Festival - Dvořákova Praha

Page Load Speed

4.2 sec in total

First Response

358 ms

Resources Loaded

3.7 sec

Page Rendered

212 ms

dvorakovapraha.cz screenshot

About Website

Click here to check amazing Dvorakova Praha content for Czech Republic. Otherwise, check out these important facts you probably never knew about dvorakovapraha.cz

7. - 25. září 2023, Rudolfinum. Jeden z největších festivalů klasické hudby v České republice.

Visit dvorakovapraha.cz

Key Findings

We analyzed Dvorakovapraha.cz page load time and found that the first response time was 358 ms and then it took 3.9 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

dvorakovapraha.cz performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.648

9/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

dvorakovapraha.cz

358 ms

www.dvorakovapraha.cz

876 ms

tx_jfmulticontent_pi1.css

235 ms

stylesheet_d53a0c7892.css

233 ms

font-awesome.min.css

8 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 58% of them (41 requests) were addressed to the original Dvorakovapraha.cz, 23% (16 requests) were made to Dp.colosseum.eu and 3% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Dvorakovapraha.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 977.3 kB (61%)

Content Size

1.6 MB

After Optimization

636.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dvorakovapraha.cz main page is 1.6 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. 40% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 32.2 kB

  • Original 38.3 kB
  • After minification 25.9 kB
  • After compression 6.1 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 12.4 kB, which is 32% 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 32.2 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 19.6 kB

  • Original 368.7 kB
  • After minification 349.1 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. Dvorakova Praha images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 837.6 kB

  • Original 1.1 MB
  • After minification 852.4 kB
  • After compression 259.3 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 837.6 kB or 76% of the original size.

CSS Optimization

-80%

Potential reduce by 87.8 kB

  • Original 109.9 kB
  • After minification 89.2 kB
  • After compression 22.1 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. Dvorakovapraha.cz needs all CSS files to be minified and compressed as it can save up to 87.8 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (74%)

Requests Now

65

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dvorakova Praha. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dvorakovapraha.cz

dvorakovapraha.cz

358 ms

www.dvorakovapraha.cz

www.dvorakovapraha.cz

876 ms

tx_jfmulticontent_pi1.css

tx_jfmulticontent_pi1.css

235 ms

stylesheet_d53a0c7892.css

stylesheet_d53a0c7892.css

233 ms

font-awesome.min.css

font-awesome.min.css

8 ms

01_main.css

01_main.css

233 ms

02_header.css

02_header.css

235 ms

03_top_menu.css

03_top_menu.css

241 ms

06_0_content.css

06_0_content.css

236 ms

07_footer.css

07_footer.css

347 ms

08_news.css

08_news.css

347 ms

09_form.css

09_form.css

352 ms

10_language.css

10_language.css

350 ms

11_rootline.css

11_rootline.css

353 ms

12_share.css

12_share.css

354 ms

13_program.css

13_program.css

575 ms

99_responsive.css

99_responsive.css

462 ms

99_slick.css

99_slick.css

466 ms

99_fancybox.css

99_fancybox.css

468 ms

99_uvod_novy.css

99_uvod_novy.css

470 ms

jquery-1.8.x-1.9.x.js

jquery-1.8.x-1.9.x.js

1452 ms

javascript_ed81154474.js

javascript_ed81154474.js

577 ms

jquery.selectbox-0.2.min.js

jquery.selectbox-0.2.min.js

475 ms

freeTickets.js

freeTickets.js

480 ms

slick.min.js

slick.min.js

635 ms

jquery.fancybox.js

jquery.fancybox.js

812 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

713 ms

main_v11.js

main_v11.js

720 ms

424 ms

conversion.js

conversion.js

34 ms

retargeting.js

retargeting.js

336 ms

ExternalQuickDialogCart

ExternalQuickDialogCart

441 ms

ExternalCartInfo

ExternalCartInfo

298 ms

ExternalSummaryInfo

ExternalSummaryInfo

298 ms

logo-dvorakova-praha_2016.png

logo-dvorakova-praha_2016.png

267 ms

red-dot.png

red-dot.png

149 ms

dp3.jpg

dp3.jpg

242 ms

icon-uvod-darek.png

icon-uvod-darek.png

148 ms

2012-02-AEB-Portret-group.jpg

2012-02-AEB-Portret-group.jpg

664 ms

D-Dvorakova-praha16-inverzni.png

D-Dvorakova-praha16-inverzni.png

148 ms

23.9..jpg

23.9..jpg

963 ms

dvorakovapraha-uvod.png

dvorakovapraha-uvod.png

273 ms

odrazka.gif

odrazka.gif

265 ms

logo-footer_KKCG.png

logo-footer_KKCG.png

357 ms

logo-footer_Praha.png

logo-footer_Praha.png

382 ms

logo-footer_MK_CZ.png

logo-footer_MK_CZ.png

399 ms

BodoniAntiquaTOT-Lig.woff

BodoniAntiquaTOT-Lig.woff

355 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

22 ms

DvorakovaprahaPicto-Regular.woff

DvorakovaprahaPicto-Regular.woff

433 ms

analytics.js

analytics.js

21 ms

219 ms

78 ms

collect

collect

55 ms

fbds.js

fbds.js

93 ms

retargeting

retargeting

118 ms

31 ms

102 ms

style_external.css

style_external.css

115 ms

jquery-1.6.2.min.js

jquery-1.6.2.min.js

343 ms

jquery-ui-1.8.16.custom.min.js

jquery-ui-1.8.16.custom.min.js

535 ms

jquery-ui-timepicker-addon.js

jquery-ui-timepicker-addon.js

221 ms

jquery.spinner.js

jquery.spinner.js

223 ms

jqModal.js

jqModal.js

235 ms

jqFunctions.js

jqFunctions.js

276 ms

jquery.dataTables.js

jquery.dataTables.js

444 ms

jquery.poshytip.js

jquery.poshytip.js

375 ms

custom.js

custom.js

375 ms

RegionalSettingsDateTimePicker.js

RegionalSettingsDateTimePicker.js

406 ms

ExternalMaster.js

ExternalMaster.js

453 ms

spinner.gif

spinner.gif

134 ms

23 ms

Accessibility Review

dvorakovapraha.cz accessibility score

96

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

Links do not have a discernible name

Best Practices

dvorakovapraha.cz best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

dvorakovapraha.cz SEO score

88

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Dvorakovapraha.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 Dvorakovapraha.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

dvorakovapraha.cz

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