Tools & Wizards About Us
rande.cz screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

Page Load Speed

5 sec in total

First Response

985 ms

Resources Loaded

3.8 sec

Page Rendered

213 ms

rande.cz screenshot

About Website

Click here to check amazing Rande content for Switzerland. Otherwise, check out these important facts you probably never knew about rande.cz

Visit rande.cz

Key Findings

We analyzed Rande.cz page load time and found that the first response time was 985 ms and then it took 4 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

rande.cz performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value6,880 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.107

88/100

15%

TTI (Time to Interactive)

Value12.3 s

15/100

10%

Network Requests Diagram

index.aspx

985 ms

bootstrap.min.css

368 ms

rande.css

917 ms

hp.css

248 ms

common.js

245 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 75% of them (47 requests) were addressed to the original Rande.cz, 5% (3 requests) were made to Gacz.hit.gemius.pl and 5% (3 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Rande.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 434.5 kB (40%)

Content Size

1.1 MB

After Optimization

654.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rande.cz main page is 1.1 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. 30% of websites need less resources to load. Images take 517.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 56.6 kB

  • Original 76.1 kB
  • After minification 73.2 kB
  • After compression 19.5 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 56.6 kB or 74% of the original size.

Image Optimization

-5%

Potential reduce by 28.3 kB

  • Original 517.7 kB
  • After minification 489.5 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. Rande images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 195.4 kB

  • Original 283.1 kB
  • After minification 241.3 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 195.4 kB or 69% of the original size.

CSS Optimization

-73%

Potential reduce by 154.2 kB

  • Original 211.8 kB
  • After minification 205.9 kB
  • After compression 57.5 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. Rande.cz needs all CSS files to be minified and compressed as it can save up to 154.2 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (23%)

Requests Now

62

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rande. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

index.aspx

index.aspx

985 ms

bootstrap.min.css

bootstrap.min.css

368 ms

rande.css

rande.css

917 ms

hp.css

hp.css

248 ms

common.js

common.js

245 ms

jquery.min.js

jquery.min.js

749 ms

naseptavac.js

naseptavac.js

673 ms

WebResource.axd

WebResource.axd

377 ms

WebResource.axd

WebResource.axd

360 ms

fl_footer.js

fl_footer.js

125 ms

bootstrap.min.js

bootstrap.min.js

247 ms

look.js

look.js

335 ms

Browser.js

Browser.js

361 ms

dot.asp

dot.asp

394 ms

rande-seznamka.png

rande-seznamka.png

123 ms

rp182356CvkBVNuKTCEeUKJy69dUrkjrjqbG9I_s.jpg

rp182356CvkBVNuKTCEeUKJy69dUrkjrjqbG9I_s.jpg

241 ms

rp211333T7mv62pjfdBepc1ujRqsgic8nZkQt1_s.jpg

rp211333T7mv62pjfdBepc1ujRqsgic8nZkQt1_s.jpg

215 ms

rp1839555jx6CYsr2VNdB2MGSOodk3skLWNQ78_s.jpg

rp1839555jx6CYsr2VNdB2MGSOodk3skLWNQ78_s.jpg

368 ms

rp164228KHBfQjuUL8EdoerO3V0GpSzEstxUYp_s.jpg

rp164228KHBfQjuUL8EdoerO3V0GpSzEstxUYp_s.jpg

220 ms

rp202200Xnm7QJ94NyejnxZiCfspraaI4Mjr8W_s.jpg

rp202200Xnm7QJ94NyejnxZiCfspraaI4Mjr8W_s.jpg

217 ms

rp143113i95CLcGfc1xltnGc4nJyTNvIoBYac5_s.jpg

rp143113i95CLcGfc1xltnGc4nJyTNvIoBYac5_s.jpg

269 ms

rp140444VTbyDGdm1DTk3VXacmfhzbf3P7NezG_s.jpg

rp140444VTbyDGdm1DTk3VXacmfhzbf3P7NezG_s.jpg

345 ms

rp224344I8kI0h0sxuDz9gYhKi3bR8FzIAJjg5_s.jpg

rp224344I8kI0h0sxuDz9gYhKi3bR8FzIAJjg5_s.jpg

340 ms

rp221738xpw7wXXyUg0A7ok0yNnlXr07i1cxqX_s.jpg

rp221738xpw7wXXyUg0A7ok0yNnlXr07i1cxqX_s.jpg

349 ms

02_2055155Eqo8rjER07XCwZ4vVPOmP8WCrEawX_s.jpg

02_2055155Eqo8rjER07XCwZ4vVPOmP8WCrEawX_s.jpg

370 ms

01_155014yVaR2V1w55Bu8y494ziSdqLN8AAeOQ_s.jpg

01_155014yVaR2V1w55Bu8y494ziSdqLN8AAeOQ_s.jpg

402 ms

8U1fQAXf41_s.jpg

8U1fQAXf41_s.jpg

473 ms

spolurp101314rcj6rArVNAiRI1u4ZRQIAqfHPY7yo7_s.jpg

spolurp101314rcj6rArVNAiRI1u4ZRQIAqfHPY7yo7_s.jpg

484 ms

rp183906v97ystjyquLNhPhnBXFHsFR5WjeEvY_s.jpg

rp183906v97ystjyquLNhPhnBXFHsFR5WjeEvY_s.jpg

482 ms

rp105500l8GE5364zF9Jx3sn5msYLSnge7K4YI_s.jpg

rp105500l8GE5364zF9Jx3sn5msYLSnge7K4YI_s.jpg

499 ms

rp173750wlYUPesoD5zTwjkswT9E0z5lhpbOkX_s.jpg

rp173750wlYUPesoD5zTwjkswT9E0z5lhpbOkX_s.jpg

505 ms

s2SRAUU552_s.jpg

s2SRAUU552_s.jpg

528 ms

rp154529YnlGy7FKf806qT9Df1k1yyNrQ8GmVw_s.jpg

rp154529YnlGy7FKf806qT9Df1k1yyNrQ8GmVw_s.jpg

619 ms

JnixZY7922_s.jpg

JnixZY7922_s.jpg

617 ms

rp182043HhSn0rXVDs7eMghpO6dnlOYATMvWcU_s.jpg

rp182043HhSn0rXVDs7eMghpO6dnlOYATMvWcU_s.jpg

621 ms

getImageCode.aspx

getImageCode.aspx

627 ms

rande-hp-obr1.jpg

rande-hp-obr1.jpg

751 ms

rande-hp-obr2.jpg

rande-hp-obr2.jpg

652 ms

reklama-android-hp.jpg

reklama-android-hp.jpg

1339 ms

gplay.jpg

gplay.jpg

734 ms

hlavicka.jpg

hlavicka.jpg

738 ms

zelene-stredni.png

zelene-stredni.png

740 ms

all.js

all.js

161 ms

barevny-prouzek-spodni.jpg

barevny-prouzek-spodni.jpg

749 ms

barevne-pozadi.jpg

barevne-pozadi.jpg

946 ms

registracni-formular.jpg

registracni-formular.jpg

841 ms

registrovat.png

registrovat.png

842 ms

bck_paticka.jpg

bck_paticka.jpg

847 ms

analytics.js

analytics.js

22 ms

xgemius.js

xgemius.js

423 ms

screenw.aspx

screenw.aspx

844 ms

collect

collect

12 ms

64 ms

xd_arbiter.php

xd_arbiter.php

132 ms

xd_arbiter.php

xd_arbiter.php

248 ms

fpdata.js

fpdata.js

107 ms

lsget.html

lsget.html

252 ms

rexdot.js

rexdot.js

108 ms

xd_arbiter.php

xd_arbiter.php

76 ms

login_button.php

login_button.php

55 ms

yD3uLzdmZ08.js

yD3uLzdmZ08.js

356 ms

teE39sffXW8.png

teE39sffXW8.png

453 ms

iqVGY7gYXlg.gif

iqVGY7gYXlg.gif

453 ms

Accessibility Review

rande.cz accessibility score

81

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.

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

Form elements do not have associated labels

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

rande.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

rande.cz SEO score

89

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

High

Tap targets are not sized appropriately

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 Rande.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 Rande.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

rande.cz

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