Tools & Wizards About Us
nanic.cz screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

nanic.cz

Testi.cz — v?domostn? testy

Page Load Speed

23.1 sec in total

First Response

751 ms

Resources Loaded

21.9 sec

Page Rendered

372 ms

nanic.cz screenshot

About Website

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

V?domostn? testy online. Angli?tina, ?e?tina, n?m?ina, matematika, filmy, seri?ly, knihy, historie a jin?, z?bavn? i pou?n?.

Visit nanic.cz

Key Findings

We analyzed Nanic.cz page load time and found that the first response time was 751 ms and then it took 22.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

nanic.cz performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

nanic.cz

751 ms

testi.cz

731 ms

jquery.min.js

26 ms

style.css

118 ms

locale.js.php

291 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Nanic.cz, 35% (28 requests) were made to Testi.cz and 28% (22 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 183.5 kB (19%)

Content Size

976.8 kB

After Optimization

793.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nanic.cz main page is 976.8 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. 55% of websites need less resources to load. Javascripts take 477.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 55.9 kB

  • Original 73.4 kB
  • After minification 72.6 kB
  • After compression 17.5 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 55.9 kB or 76% of the original size.

Image Optimization

-14%

Potential reduce by 56.9 kB

  • Original 402.6 kB
  • After minification 345.7 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. Obviously, Nanic needs image optimization as it can save up to 56.9 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-11%

Potential reduce by 52.0 kB

  • Original 477.8 kB
  • After minification 467.7 kB
  • After compression 425.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 52.0 kB or 11% of the original size.

CSS Optimization

-82%

Potential reduce by 18.7 kB

  • Original 23.0 kB
  • After minification 16.9 kB
  • After compression 4.2 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. Nanic.cz needs all CSS files to be minified and compressed as it can save up to 18.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (49%)

Requests Now

73

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nanic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nanic.cz

nanic.cz

751 ms

testi.cz

testi.cz

731 ms

jquery.min.js

jquery.min.js

26 ms

style.css

style.css

118 ms

locale.js.php

locale.js.php

291 ms

script.js

script.js

420 ms

js

js

52 ms

adsbygoogle.js

adsbygoogle.js

109 ms

bg.png

bg.png

138 ms

bg-body.png

bg-body.png

138 ms

bg-header.jpg

bg-header.jpg

238 ms

bg-menu-all.png

bg-menu-all.png

138 ms

icon1_lock.gif

icon1_lock.gif

239 ms

rating2.gif

rating2.gif

198 ms

show_ads_impl.js

show_ads_impl.js

262 ms

chart

chart

296 ms

format-indent-more.png

format-indent-more.png

106 ms

bg-search.png

bg-search.png

191 ms

system-search.png

system-search.png

193 ms

srchgo.png

srchgo.png

193 ms

bg-sidebar-bottom.gif

bg-sidebar-bottom.gif

191 ms

bg-sidebar-top-hl.png

bg-sidebar-top-hl.png

307 ms

system-software-update.gif

system-software-update.gif

210 ms

list-add.gif

list-add.gif

298 ms

bg-sidebar-bottom-hl.png

bg-sidebar-bottom-hl.png

299 ms

bg-sidebar-top.png

bg-sidebar-top.png

299 ms

system-users.png

system-users.png

298 ms

bg-sidebar-bottom.png

bg-sidebar-bottom.png

315 ms

edit-paste.png

edit-paste.png

400 ms

view-refresh.gif

view-refresh.gif

401 ms

rating.gif

rating.gif

401 ms

window-new.gif

window-new.gif

402 ms

x-office-spreadsheet.gif

x-office-spreadsheet.gif

410 ms

count.asp

count.asp

19885 ms

bg-footer.jpg

bg-footer.jpg

511 ms

zrt_lookup.html

zrt_lookup.html

39 ms

ads

ads

485 ms

ads

ads

515 ms

reactive_library.js

reactive_library.js

240 ms

ca-pub-8717470352352588

ca-pub-8717470352352588

232 ms

3224250827572758274

3224250827572758274

72 ms

load_preloaded_resource.js

load_preloaded_resource.js

74 ms

abg_lite.js

abg_lite.js

75 ms

window_focus.js

window_focus.js

79 ms

qs_click_protection.js

qs_click_protection.js

81 ms

ufs_web_display.js

ufs_web_display.js

67 ms

bbcd6bf18c20baa1b2adeb195de9b551.js

bbcd6bf18c20baa1b2adeb195de9b551.js

72 ms

icon.png

icon.png

57 ms

5275434098506456715

5275434098506456715

79 ms

7871983642999219904

7871983642999219904

173 ms

9297861204647963545

9297861204647963545

175 ms

11672689467821948930

11672689467821948930

175 ms

3139862061590421588

3139862061590421588

199 ms

11596038045514735419

11596038045514735419

202 ms

15367259385684952467

15367259385684952467

196 ms

8679168502357523219

8679168502357523219

196 ms

18168687691508054288

18168687691508054288

195 ms

7103061255373466771

7103061255373466771

198 ms

10831161372455840527

10831161372455840527

199 ms

16601714642090414425

16601714642090414425

43 ms

ads

ads

468 ms

ads

ads

460 ms

ads

ads

571 ms

ads

ads

490 ms

ads

ads

581 ms

activeview

activeview

168 ms

14763004658117789537

14763004658117789537

171 ms

s

s

172 ms

feedback_grey600_24dp.png

feedback_grey600_24dp.png

110 ms

fullscreen_api_adapter.js

fullscreen_api_adapter.js

98 ms

interstitial_ad_frame.js

interstitial_ad_frame.js

103 ms

sa30O7WeJNzu8x7oKdCcujxNj08-gvZudrea3FT7Uzc.js

sa30O7WeJNzu8x7oKdCcujxNj08-gvZudrea3FT7Uzc.js

31 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

30 ms

10742644139180032640

10742644139180032640

34 ms

settings_grey600_24dp.png

settings_grey600_24dp.png

124 ms

css

css

124 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy_AFyo4d4k.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy_AFyo4d4k.woff

100 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy_AFyo4d4k.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy_AFyo4d4k.woff

100 ms

activeview

activeview

93 ms

Accessibility Review

nanic.cz accessibility score

78

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.

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

Form elements do not have associated labels

Best Practices

nanic.cz best practices score

67

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nanic.cz SEO score

88

Search Engine Optimization Advices

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

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

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nanic.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 Nanic.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

nanic.cz

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