Tools & Wizards About Us
rokry.cz screenshot

Report Summary

  • 69

    Performance

    Renders faster than
    80% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

rokry.cz

Hlavní strana | ROKRY s.r.o.

Page Load Speed

2.2 sec in total

First Response

600 ms

Resources Loaded

1.4 sec

Page Rendered

192 ms

rokry.cz screenshot

About Website

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

Hlavní strana - ROKRY, s.r.o.

Visit rokry.cz

Key Findings

We analyzed Rokry.cz page load time and found that the first response time was 600 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

rokry.cz performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

4/100

25%

SI (Speed Index)

Value3.7 s

86/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

rokry.cz

600 ms

style.css

105 ms

lightbox.css

196 ms

wt-rotator.css

197 ms

jquery.fancybox-1.3.4.css

196 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 93% of them (27 requests) were addressed to the original Rokry.cz, 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (600 ms) belongs to the original domain Rokry.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 14.9 kB (2%)

Content Size

661.8 kB

After Optimization

646.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rokry.cz main page is 661.8 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. 30% of websites need less resources to load. Images take 581.9 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 5.7 kB

  • Original 8.2 kB
  • After minification 7.1 kB
  • After compression 2.5 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. This page needs HTML code to be minified as it can gain 1.1 kB, which is 13% 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 5.7 kB or 69% of the original size.

Image Optimization

-1%

Potential reduce by 3.7 kB

  • Original 581.9 kB
  • After minification 578.2 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. ROKRY images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 4.2 kB

  • Original 63.6 kB
  • After minification 63.6 kB
  • After compression 59.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-17%

Potential reduce by 1.4 kB

  • Original 8.0 kB
  • After minification 8.0 kB
  • After compression 6.7 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. Rokry.cz needs all CSS files to be minified and compressed as it can save up to 1.4 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (54%)

Requests Now

28

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ROKRY. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rokry.cz

rokry.cz

600 ms

style.css

style.css

105 ms

lightbox.css

lightbox.css

196 ms

wt-rotator.css

wt-rotator.css

197 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

196 ms

jquery.js

jquery.js

293 ms

jquery.lightbox.js

jquery.lightbox.js

202 ms

jquery.easing.1.3.min.js

jquery.easing.1.3.min.js

203 ms

jquery.wt-rotator.min.js

jquery.wt-rotator.min.js

300 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

299 ms

jquery.easing-1.3.pack.js

jquery.easing-1.3.pack.js

298 ms

menu.js

menu.js

306 ms

ga.js

ga.js

24 ms

bg-top-x.jpg

bg-top-x.jpg

103 ms

bg-top.jpg

bg-top.jpg

402 ms

bg-header.jpg

bg-header.jpg

386 ms

logo.jpg

logo.jpg

196 ms

box-h2-short.png

box-h2-short.png

103 ms

servis.jpg

servis.jpg

291 ms

more.jpg

more.jpg

205 ms

box-h2-long.png

box-h2-long.png

204 ms

autopujcovna.jpg

autopujcovna.jpg

392 ms

map.jpg

map.jpg

492 ms

footer-bg.jpg

footer-bg.jpg

305 ms

logo_karty.png

logo_karty.png

393 ms

loading.gif

loading.gif

406 ms

close.gif

close.gif

485 ms

blank.gif

blank.gif

491 ms

__utm.gif

__utm.gif

11 ms

Accessibility Review

rokry.cz accessibility score

82

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

<object> elements do not have alternate text

Best Practices

rokry.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

rokry.cz SEO score

58

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

Document uses plugins

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rokry.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Rokry.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

rokry.cz

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