Tools & Wizards About Us
nahrajvideo.cz screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

nahrajvideo.cz

Page Load Speed

5.4 sec in total

First Response

447 ms

Resources Loaded

4.1 sec

Page Rendered

782 ms

nahrajvideo.cz screenshot

About Website

Click here to check amazing Nahrajvideo content. Otherwise, check out these important facts you probably never knew about nahrajvideo.cz

You.bo

Visit nahrajvideo.cz

Key Findings

We analyzed Nahrajvideo.cz page load time and found that the first response time was 447 ms and then it took 4.9 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

nahrajvideo.cz performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

36/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value2,960 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.822

4/100

15%

TTI (Time to Interactive)

Value16.4 s

5/100

10%

Network Requests Diagram

nahrajvideo.cz

447 ms

you.bo

343 ms

youbo.iprima.cz

462 ms

css

26 ms

font-awesome.min.css

124 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Nahrajvideo.cz, 48% (44 requests) were made to Youbo.iprima.cz and 10% (9 requests) were made to Cdn11.you.bo. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Ls.hit.gemius.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 948.7 kB (69%)

Content Size

1.4 MB

After Optimization

429.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nahrajvideo.cz main page is 1.4 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. Javascripts take 964.1 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 31.4 kB

  • Original 42.5 kB
  • After minification 40.7 kB
  • After compression 11.1 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. 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 31.4 kB or 74% of the original size.

Image Optimization

-6%

Potential reduce by 8.8 kB

  • Original 136.5 kB
  • After minification 127.7 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. Nahrajvideo images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 702.8 kB

  • Original 964.1 kB
  • After minification 928.5 kB
  • After compression 261.4 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 702.8 kB or 73% of the original size.

CSS Optimization

-87%

Potential reduce by 205.7 kB

  • Original 235.5 kB
  • After minification 180.7 kB
  • After compression 29.8 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. Nahrajvideo.cz needs all CSS files to be minified and compressed as it can save up to 205.7 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (48%)

Requests Now

67

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nahrajvideo. 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 as a result speed up the page load time.

Network Requests Diagram

nahrajvideo.cz

nahrajvideo.cz

447 ms

you.bo

you.bo

343 ms

youbo.iprima.cz

youbo.iprima.cz

462 ms

css

css

26 ms

font-awesome.min.css

font-awesome.min.css

124 ms

youbo.css

youbo.css

369 ms

hammer.min.js

hammer.min.js

241 ms

config.js

config.js

240 ms

require.js

require.js

242 ms

advertisement.js

advertisement.js

243 ms

bb_one2n.js

bb_one2n.js

221 ms

bb_one2n.113.65.77.1.js

bb_one2n.113.65.77.1.js

594 ms

sprite.png

sprite.png

249 ms

videoback-overlay.png

videoback-overlay.png

123 ms

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1456845767_179.jpg

128 ms

1441372550_128.jpg

1441372550_128.jpg

132 ms

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1438933948_17.jpg

124 ms

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121 ms

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239 ms

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244 ms

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243 ms

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hps_53a407f7f36a1-25902.jpg

245 ms

blank.jpg

blank.jpg

247 ms

footer-google-play.png

footer-google-play.png

354 ms

footer-ios.jpg

footer-ios.jpg

358 ms

like.php

like.php

92 ms

main.js

main.js

296 ms

defer.js

defer.js

302 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

543 ms

1440420643_851.jpg

1440420643_851.jpg

471 ms

1438933948_17.jpg

1438933948_17.jpg

340 ms

1456845767_179.jpg

1456845767_179.jpg

466 ms

1441372550_128.jpg

1441372550_128.jpg

464 ms

h5Lp5Et_eC4.js

h5Lp5Et_eC4.js

498 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

558 ms

1440067019_750.jpg

1440067019_750.jpg

345 ms

hps_534a62bf2173a-24.jpg

hps_534a62bf2173a-24.jpg

453 ms

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hps_52b2199693398-242.jpg

362 ms

hps_53a407f7f36a1-25902.jpg

hps_53a407f7f36a1-25902.jpg

446 ms

jquery.min.js

jquery.min.js

67 ms

script.js

script.js

122 ms

all.js

all.js

277 ms

fbds.js

fbds.js

344 ms

analytics.js

analytics.js

6 ms

xgemius.js

xgemius.js

269 ms

modernizr.min.js

modernizr.min.js

122 ms

gstream.js

gstream.js

645 ms

netteForms.js

netteForms.js

188 ms

jquery.fastclick.js

jquery.fastclick.js

186 ms

collect

collect

12 ms

bbnaut-lib-1.7.5.min.js

bbnaut-lib-1.7.5.min.js

441 ms

nette.ajax.js

nette.ajax.js

136 ms

jquery.tooltipster.min.js

jquery.tooltipster.min.js

161 ms

jquery.hammer.js

jquery.hammer.js

176 ms

fastclick.js

fastclick.js

127 ms

fpdata.js

fpdata.js

88 ms

lsget.html

lsget.html

1353 ms

43 ms

xd_arbiter.php

xd_arbiter.php

262 ms

xd_arbiter.php

xd_arbiter.php

466 ms

8 ms

co

co

231 ms

xd_arbiter.php

xd_arbiter.php

146 ms

like.php

like.php

62 ms

gemius.js

gemius.js

109 ms

youbo.min.js

youbo.min.js

862 ms

hps_53a6a5707e7a5-44259.jpg

hps_53a6a5707e7a5-44259.jpg

123 ms

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hps_53b1cf1826898-24566.jpg

126 ms

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hps_53c910e552e30-44259.jpg

126 ms

hps_53cbb7aa5cf2d-25902.jpg

hps_53cbb7aa5cf2d-25902.jpg

127 ms

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hps_54b521e446014-242.jpg

124 ms

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121 ms

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223 ms

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242 ms

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249 ms

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248 ms

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hps_56e0165d31161-86544.jpg

251 ms

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hps_56ee6fd37c3f2-175403.jpg

252 ms

rexdot.js

rexdot.js

89 ms

hps_53a6a5707e7a5-44259.jpg

hps_53a6a5707e7a5-44259.jpg

238 ms

hps_54b7e1f5ef698-242.jpg

hps_54b7e1f5ef698-242.jpg

121 ms

hps_54b521e446014-242.jpg

hps_54b521e446014-242.jpg

129 ms

hps_53b1cf1826898-24566.jpg

hps_53b1cf1826898-24566.jpg

232 ms

hps_53c910e552e30-44259.jpg

hps_53c910e552e30-44259.jpg

233 ms

hps_53cbb7aa5cf2d-25902.jpg

hps_53cbb7aa5cf2d-25902.jpg

126 ms

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hps_56ee55fbefd45-175403.jpg

238 ms

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hps_56ee6bdfbe87a-175403.jpg

120 ms

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hps_56cb7d6fdc9b5-298.jpg

122 ms

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118 ms

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hps_56e0165d31161-86544.jpg

118 ms

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hps_56ee6fd37c3f2-175403.jpg

121 ms

3 ms

Accessibility Review

nahrajvideo.cz accessibility score

86

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

Best Practices

nahrajvideo.cz best practices score

83

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

Low

Detected JavaScript libraries

SEO Factors

nahrajvideo.cz SEO score

91

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

    N/A

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nahrajvideo.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Nahrajvideo.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

nahrajvideo.cz

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