Tools & Wizards About Us
tanecni-skola.cz screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% 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

  • 93

    SEO

    Google-friendlier than
    83% of websites

tanecni-skola.cz

Taneční škola START - taneční kurzy pro dospělé i mládež

Page Load Speed

6.1 sec in total

First Response

432 ms

Resources Loaded

5.3 sec

Page Rendered

353 ms

tanecni-skola.cz screenshot

About Website

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

Zábavné taneční kurzy Praha pořádáme pro dospělé i mládež. Kurzy tance jsou určeny pro všechny - jak pro začátečníky, tak pro pokročilé.

Visit tanecni-skola.cz

Key Findings

We analyzed Tanecni-skola.cz page load time and found that the first response time was 432 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

tanecni-skola.cz performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.2 s

0/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value330 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0.148

76/100

15%

TTI (Time to Interactive)

Value20.7 s

2/100

10%

Network Requests Diagram

tanecni-skola.cz

432 ms

www.tanecni-skola.cz

1855 ms

wp-emoji-release.min.js

120 ms

style.min.css

360 ms

settings.css

477 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 80% of them (60 requests) were addressed to the original Tanecni-skola.cz, 8% (6 requests) were made to Fonts.gstatic.com and 5% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Tanecni-skola.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (47%)

Content Size

2.6 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tanecni-skola.cz main page is 2.6 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. 60% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 75.5 kB

  • Original 91.5 kB
  • After minification 83.5 kB
  • After compression 16.0 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 75.5 kB or 83% of the original size.

Image Optimization

-12%

Potential reduce by 160.2 kB

  • Original 1.4 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. Obviously, Tanecni Skola needs image optimization as it can save up to 160.2 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

-0%

Potential reduce by 74 B

  • Original 23.0 kB
  • After minification 23.0 kB
  • After compression 22.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-86%

Potential reduce by 985.1 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 162.7 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. Tanecni-skola.cz needs all CSS files to be minified and compressed as it can save up to 985.1 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (63%)

Requests Now

65

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tanecni Skola. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tanecni-skola.cz

tanecni-skola.cz

432 ms

www.tanecni-skola.cz

www.tanecni-skola.cz

1855 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

120 ms

style.min.css

style.min.css

360 ms

settings.css

settings.css

477 ms

dashicons.min.css

dashicons.min.css

597 ms

noo-timetable.css

noo-timetable.css

475 ms

noo-timetable-schedule.css

noo-timetable-schedule.css

480 ms

font-awesome.min.css

font-awesome.min.css

482 ms

noo.css

noo.css

857 ms

custom.css

custom.css

593 ms

style.css

style.css

596 ms

font-awesome.min.css

font-awesome.min.css

599 ms

css

css

32 ms

css

css

50 ms

css

css

55 ms

js_composer.min.css

js_composer.min.css

1106 ms

jquery-ui.css

jquery-ui.css

717 ms

jquery.js

jquery.js

838 ms

jquery.themepunch.tools.min.js

jquery.themepunch.tools.min.js

854 ms

jquery.themepunch.revolution.min.js

jquery.themepunch.revolution.min.js

841 ms

modernizr-2.7.1.min.js

modernizr-2.7.1.min.js

837 ms

css

css

53 ms

core.min.js

core.min.js

955 ms

widget.min.js

widget.min.js

955 ms

button.min.js

button.min.js

959 ms

datepicker.min.js

datepicker.min.js

982 ms

jquery.ui.spinner.js

jquery.ui.spinner.js

981 ms

cf7-datepicker-ie-fixer.js

cf7-datepicker-ie-fixer.js

1075 ms

scripts.js

scripts.js

1074 ms

noo-timetable.js

noo-timetable.js

1078 ms

comment-reply.min.js

comment-reply.min.js

1151 ms

jquery.touchSwipe.js

jquery.touchSwipe.js

1234 ms

bootstrap.min.js

bootstrap.min.js

1233 ms

hoverIntent-r7.min.js

hoverIntent-r7.min.js

1232 ms

superfish-1.7.4.min.js

superfish-1.7.4.min.js

1232 ms

imagesloaded.pkgd.min.js

imagesloaded.pkgd.min.js

1233 ms

noo.js

noo.js

1233 ms

member.js

member.js

1345 ms

wp-embed.min.js

wp-embed.min.js

1344 ms

js_composer_front.min.js

js_composer_front.min.js

1345 ms

isotope-2.0.0.min.js

isotope-2.0.0.min.js

1357 ms

transparent.png

transparent.png

208 ms

tanecnipar_slider-e1443174851170.png

tanecnipar_slider-e1443174851170.png

340 ms

logo-start-sk.png

logo-start-sk.png

282 ms

tanecni-skola-kurzy.png

tanecni-skola-kurzy.png

665 ms

students-prom-3-1425383-600x450.jpg

students-prom-3-1425383-600x450.jpg

421 ms

laken-4-1489762-600x450.jpg

laken-4-1489762-600x450.jpg

316 ms

OBCCO70-594x1024.jpg

OBCCO70-594x1024.jpg

325 ms

MaOb_RoPo_2-400x510.jpg

MaOb_RoPo_2-400x510.jpg

421 ms

Helenka_04-400x510.jpg

Helenka_04-400x510.jpg

439 ms

jakub-e1443176026313.jpg

jakub-e1443176026313.jpg

447 ms

students-prom-1498151-600x450.jpg

students-prom-1498151-600x450.jpg

460 ms

red-velvet-shoes-1414815-600x450.jpg

red-velvet-shoes-1414815-600x450.jpg

550 ms

ballroom-1039371_1920-600x450.jpg

ballroom-1039371_1920-600x450.jpg

545 ms

bandi.jpg

bandi.jpg

563 ms

icon-title.png

icon-title.png

491 ms

jizaRExUiTo99u79D0KEwA.ttf

jizaRExUiTo99u79D0KEwA.ttf

29 ms

jizfRExUiTo99u79B_mh0O6tKA.ttf

jizfRExUiTo99u79B_mh0O6tKA.ttf

59 ms

z7NFdQDnbTkabZAIOl9il_O6KJj73e7Ff1GhDuXMQg.ttf

z7NFdQDnbTkabZAIOl9il_O6KJj73e7Ff1GhDuXMQg.ttf

68 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

69 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

496 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

700 ms

jizYRExUiTo99u79D0e0x8mN.ttf

jizYRExUiTo99u79D0e0x8mN.ttf

70 ms

jizdRExUiTo99u79D0e8fOydLxUY.ttf

jizdRExUiTo99u79D0e8fOydLxUY.ttf

68 ms

analytics.js

analytics.js

55 ms

recorder.js

recorder.js

211 ms

revolution.extension.slideanims.min.js

revolution.extension.slideanims.min.js

452 ms

revolution.extension.actions.min.js

revolution.extension.actions.min.js

456 ms

revolution.extension.layeranimation.min.js

revolution.extension.layeranimation.min.js

462 ms

revolution.extension.navigation.min.js

revolution.extension.navigation.min.js

478 ms

collect

collect

13 ms

collect

collect

27 ms

js

js

68 ms

loader.gif

loader.gif

127 ms

Accessibility Review

tanecni-skola.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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

tanecni-skola.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tanecni-skola.cz SEO score

93

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

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 Tanecni-skola.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 Tanecni-skola.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

tanecni-skola.cz

Open Graph data is detected on the main page of Tanecni Skola. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: