Tools & Wizards About Us
cklub.cz screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

cklub.cz

Srovnávač a vyhledávač zájezdů | cKlub.cz

Page Load Speed

4.6 sec in total

First Response

410 ms

Resources Loaded

3.9 sec

Page Rendered

264 ms

cklub.cz screenshot

About Website

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

Portál cKlub.cz je "sociální síť" a prodejní zájezdový web v jednom. Obsahuje akční i klasické nabídky, diskuzní fórum, blog, důležité informace i zkušenosti a fotky od ostatních dobrodruhů.

Visit cklub.cz

Key Findings

We analyzed Cklub.cz page load time and found that the first response time was 410 ms and then it took 4.2 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

cklub.cz performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

58/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value2,090 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.271

45/100

15%

TTI (Time to Interactive)

Value12.8 s

13/100

10%

Network Requests Diagram

cklub.cz

410 ms

cklub.cz

437 ms

www.cklub.cz

786 ms

gtm.js

56 ms

select2.min.css

211 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 45% of them (35 requests) were addressed to the original Cklub.cz, 12% (9 requests) were made to Pagead2.googlesyndication.com and 10% (8 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (786 ms) belongs to the original domain Cklub.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 243.4 kB (14%)

Content Size

1.8 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cklub.cz main page is 1.8 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. 65% of websites need less resources to load. Javascripts take 863.3 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 119.5 kB

  • Original 144.5 kB
  • After minification 118.8 kB
  • After compression 24.9 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 25.6 kB, which is 18% 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 119.5 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 1.4 kB

  • Original 696.5 kB
  • After minification 695.1 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. CKlub images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 122.4 kB

  • Original 863.3 kB
  • After minification 863.3 kB
  • After compression 740.8 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 122.4 kB or 14% of the original size.

CSS Optimization

-0%

Potential reduce by 82 B

  • Original 85.1 kB
  • After minification 85.1 kB
  • After compression 85.0 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. Cklub.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 50 (72%)

Requests Now

69

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CKlub. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cklub.cz

cklub.cz

410 ms

cklub.cz

cklub.cz

437 ms

www.cklub.cz

www.cklub.cz

786 ms

gtm.js

gtm.js

56 ms

select2.min.css

select2.min.css

211 ms

select2-addl.min.css

select2-addl.min.css

316 ms

select2-krajee-bs3.min.css

select2-krajee-bs3.min.css

355 ms

kv-widgets.min.css

kv-widgets.min.css

355 ms

dependent-dropdown.min.css

dependent-dropdown.min.css

358 ms

js

js

46 ms

js

js

121 ms

base.js

base.js

594 ms

all.js

all.js

322 ms

multiple-select.js

multiple-select.js

362 ms

vypis_filters.js

vypis_filters.js

361 ms

jquery.daterangepicker.js

jquery.daterangepicker.js

471 ms

date-range-picker.js

date-range-picker.js

450 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

450 ms

index.js

index.js

467 ms

select2.full.min.js

select2.full.min.js

593 ms

cs.js

cs.js

591 ms

select2-krajee.min.js

select2-krajee.min.js

591 ms

kv-widgets.min.js

kv-widgets.min.js

591 ms

dependent-dropdown.min.js

dependent-dropdown.min.js

592 ms

depdrop.min.js

depdrop.min.js

663 ms

logo.svg

logo.svg

617 ms

ico_hamburger.svg

ico_hamburger.svg

484 ms

b2a10c_plaz-cklub-2.jpg

b2a10c_plaz-cklub-2.jpg

730 ms

loading-plugin.gif

loading-plugin.gif

486 ms

invia.svg

invia.svg

487 ms

iconfont.woff

iconfont.woff

476 ms

OneSignalSDK.js

OneSignalSDK.js

112 ms

fbevents.js

fbevents.js

32 ms

adsbygoogle.js

adsbygoogle.js

159 ms

show_ads_impl.js

show_ads_impl.js

235 ms

94fc03_ISS-13641-01220.jpg

94fc03_ISS-13641-01220.jpg

426 ms

d15940_ING-52717-00493.jpg

d15940_ING-52717-00493.jpg

320 ms

058929_ING-19071-13715.jpg

058929_ING-19071-13715.jpg

216 ms

b7d99d_ING-2211-00264.jpg

b7d99d_ING-2211-00264.jpg

235 ms

7174bf_ING-32193-132779.jpg

7174bf_ING-32193-132779.jpg

345 ms

e1464b_ING-36822-03270.jpg

e1464b_ING-36822-03270.jpg

325 ms

zrt_lookup.html

zrt_lookup.html

44 ms

ads

ads

505 ms

retargeting.js

retargeting.js

706 ms

all.css

all.css

229 ms

reactive_library.js

reactive_library.js

142 ms

ca-pub-3236687833398413

ca-pub-3236687833398413

104 ms

load_preloaded_resource.js

load_preloaded_resource.js

103 ms

icon.png

icon.png

36 ms

abg_lite.js

abg_lite.js

282 ms

s

s

33 ms

window_focus.js

window_focus.js

281 ms

qs_click_protection.js

qs_click_protection.js

99 ms

ufs_web_display.js

ufs_web_display.js

46 ms

c653839755d9d9a3a773c62a0253f53f.js

c653839755d9d9a3a773c62a0253f53f.js

286 ms

fullscreen_api_adapter.js

fullscreen_api_adapter.js

289 ms

interstitial_ad_frame.js

interstitial_ad_frame.js

293 ms

pixel

pixel

268 ms

17974585693153290536

17974585693153290536

353 ms

abg_lite.js

abg_lite.js

79 ms

omrhp.js

omrhp.js

276 ms

Q12zgMmT.js

Q12zgMmT.js

270 ms

gen_204

gen_204

318 ms

feedback_grey600_24dp.png

feedback_grey600_24dp.png

315 ms

settings_grey600_24dp.png

settings_grey600_24dp.png

316 ms

pixel

pixel

214 ms

css

css

110 ms

pixel

pixel

195 ms

62bHydCX.html

62bHydCX.html

46 ms

9vDL5xLux-UGCaeP4T2_DM7AlfvMLFlt8MO-RQCzJxM.js

9vDL5xLux-UGCaeP4T2_DM7AlfvMLFlt8MO-RQCzJxM.js

31 ms

activeview

activeview

108 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpyw.ttf

93 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

94 ms

bounce

bounce

16 ms

pixel

pixel

17 ms

rum

rum

37 ms

pixel

pixel

21 ms

rum

rum

35 ms

Accessibility Review

cklub.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 input fields do not have accessible names

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

cklub.cz best practices score

83

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

cklub.cz SEO score

86

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

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

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 Cklub.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 Cklub.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

cklub.cz

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