Tools & Wizards About Us
nuov.cz screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

nuov.cz

Národní ústav odborného vzdělávání

Page Load Speed

4 sec in total

First Response

483 ms

Resources Loaded

3.4 sec

Page Rendered

113 ms

nuov.cz screenshot

About Website

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

Stránky Národního ústavu pro odborného vzdělávání

Visit nuov.cz

Key Findings

We analyzed Nuov.cz page load time and found that the first response time was 483 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

nuov.cz performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value7.9 s

22/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.05

99/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

nuov.cz

483 ms

nuov.cz

939 ms

ga.js

20 ms

main.css

687 ms

inline.css

593 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 96% of them (50 requests) were addressed to the original Nuov.cz, 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (961 ms) belongs to the original domain Nuov.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 258.2 kB (51%)

Content Size

511.3 kB

After Optimization

253.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nuov.cz main page is 511.3 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. 25% of websites need less resources to load. Javascripts take 288.1 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 12.7 kB

  • Original 17.5 kB
  • After minification 17.3 kB
  • After compression 4.8 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 12.7 kB or 72% of the original size.

Image Optimization

-2%

Potential reduce by 3.2 kB

  • Original 154.5 kB
  • After minification 151.3 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. Nuov images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 200.4 kB

  • Original 288.1 kB
  • After minification 253.1 kB
  • After compression 87.7 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 200.4 kB or 70% of the original size.

CSS Optimization

-82%

Potential reduce by 41.9 kB

  • Original 51.2 kB
  • After minification 37.4 kB
  • After compression 9.2 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. Nuov.cz needs all CSS files to be minified and compressed as it can save up to 41.9 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (60%)

Requests Now

50

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nuov. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nuov.cz

nuov.cz

483 ms

nuov.cz

nuov.cz

939 ms

ga.js

ga.js

20 ms

main.css

main.css

687 ms

inline.css

inline.css

593 ms

minmax.js

minmax.js

624 ms

prototype.js

prototype.js

833 ms

scriptaculous.js

scriptaculous.js

617 ms

qcmloader.js

qcmloader.js

646 ms

calendar-blue.css

calendar-blue.css

701 ms

calendar.js

calendar.js

961 ms

calendar-cs.js

calendar-cs.js

735 ms

calendar-setup.js

calendar-setup.js

766 ms

global.js

global.js

798 ms

kmlib.js

kmlib.js

814 ms

xoops.js

xoops.js

849 ms

behavior.js

behavior.js

899 ms

dots.js

dots.js

912 ms

__utm.gif

__utm.gif

12 ms

builder.js

builder.js

117 ms

effects.js

effects.js

118 ms

dragdrop.js

dragdrop.js

124 ms

controls.js

controls.js

183 ms

slider.js

slider.js

187 ms

sound.js

sound.js

232 ms

qcmtools.js

qcmtools.js

119 ms

qcmclient.js

qcmclient.js

119 ms

all-bg.gif

all-bg.gif

119 ms

header-bg.jpg

header-bg.jpg

121 ms

logo_nuov.png

logo_nuov.png

119 ms

search_input_bg.gif

search_input_bg.gif

112 ms

btn_input.gif

btn_input.gif

115 ms

left-column-bg.jpg

left-column-bg.jpg

126 ms

sipka_menu.png

sipka_menu.png

222 ms

top-box-bg.jpg

top-box-bg.jpg

243 ms

way_1.jpg

way_1.jpg

234 ms

rvp.jpg

rvp.jpg

242 ms

logo_fiktivni.jpg

logo_fiktivni.jpg

236 ms

logo_tesnopis.jpg

logo_tesnopis.jpg

261 ms

logo_europassCR.jpg

logo_europassCR.jpg

430 ms

logorefernet.jpg

logorefernet.jpg

366 ms

ttnet_logo.jpg

ttnet_logo.jpg

365 ms

sipka_neprehlednete.png

sipka_neprehlednete.png

366 ms

obr_vip22.jpg

obr_vip22.jpg

370 ms

subweb-bg.png

subweb-bg.png

398 ms

obr_univ2k.jpg

obr_univ2k.jpg

481 ms

obr_nzz2.jpg

obr_nzz2.jpg

481 ms

obr_koncept.jpg

obr_koncept.jpg

483 ms

obr_kurikulum2.jpg

obr_kurikulum2.jpg

507 ms

obr_ae2.jpg

obr_ae2.jpg

540 ms

print.css

print.css

118 ms

handheld.css

handheld.css

113 ms

Accessibility Review

nuov.cz accessibility score

97

Accessibility Issues

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

nuov.cz best practices score

75

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

nuov.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 Nuov.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 Nuov.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

nuov.cz

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