Tools & Wizards About Us
cerna-ricka.cz screenshot

Report Summary

  • 2

    Performance

    Renders faster than
    20% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

cerna-ricka.cz

Lyžařské středisko Černá Říčka

Page Load Speed

2.4 sec in total

First Response

473 ms

Resources Loaded

1.6 sec

Page Rendered

336 ms

cerna-ricka.cz screenshot

About Website

Visit cerna-ricka.cz now to see the best up-to-date Cerna Ricka content and also check out these interesting facts you probably never knew about cerna-ricka.cz

Lyžařské středisko Černá Říčka leží na okraji obce Desná v nadmořské výšce 685 - 788 m.n.m. a poskytuje díky této nadmořské výšce a dobré expozici svahu kvalitní lyžování na přírodním sněhu.Sněhová po...

Visit cerna-ricka.cz

Key Findings

We analyzed Cerna-ricka.cz page load time and found that the first response time was 473 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

cerna-ricka.cz performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value35.1 s

0/100

25%

SI (Speed Index)

Value17.6 s

0/100

10%

TBT (Total Blocking Time)

Value2,340 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.926

3/100

15%

TTI (Time to Interactive)

Value30.8 s

0/100

10%

Network Requests Diagram

cerna-ricka.cz

473 ms

predpoved-na-web.php

820 ms

IF_logo_zlute_88x31_anim.gif

277 ms

aip.php

329 ms

_blnk.gif

122 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 93% of them (38 requests) were addressed to the original Cerna-ricka.cz, 2% (1 request) were made to Slunecno.cz and 2% (1 request) were made to Vlajky.cz. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Cerna-ricka.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.0 kB (60%)

Content Size

83.9 kB

After Optimization

33.9 kB

  • HTML
  • Images

In fact, the total size of Cerna-ricka.cz main page is 83.9 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. HTML takes 48.8 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 43.2 kB

  • Original 48.8 kB
  • After minification 48.4 kB
  • After compression 5.6 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 43.2 kB or 89% of the original size.

Image Optimization

-19%

Potential reduce by 6.8 kB

  • Original 35.2 kB
  • After minification 28.4 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, Cerna Ricka needs image optimization as it can save up to 6.8 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

Number of requests can be reduced by 16 (40%)

Requests Now

40

After Optimization

24

  • Images

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cerna Ricka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

cerna-ricka.cz

cerna-ricka.cz

473 ms

predpoved-na-web.php

predpoved-na-web.php

820 ms

IF_logo_zlute_88x31_anim.gif

IF_logo_zlute_88x31_anim.gif

277 ms

aip.php

aip.php

329 ms

_blnk.gif

_blnk.gif

122 ms

img0.gif

img0.gif

731 ms

img1.jpg

img1.jpg

258 ms

img2.gif

img2.gif

255 ms

img3.gif

img3.gif

244 ms

img4.gif

img4.gif

258 ms

img5.gif

img5.gif

256 ms

img6.gif

img6.gif

644 ms

img7.gif

img7.gif

374 ms

img8.gif

img8.gif

375 ms

img9.gif

img9.gif

377 ms

img10.gif

img10.gif

379 ms

img11.gif

img11.gif

610 ms

img12.gif

img12.gif

494 ms

img13.gif

img13.gif

497 ms

img14.gif

img14.gif

499 ms

img15.gif

img15.gif

612 ms

img16.gif

img16.gif

618 ms

img17.gif

img17.gif

619 ms

img18.gif

img18.gif

846 ms

img19.gif

img19.gif

731 ms

img20.gif

img20.gif

739 ms

img21.gif

img21.gif

740 ms

img22.gif

img22.gif

760 ms

img23.gif

img23.gif

962 ms

img24.gif

img24.gif

850 ms

img25.gif

img25.gif

1017 ms

img26.jpg

img26.jpg

860 ms

img27.gif

img27.gif

880 ms

img28.jpg

img28.jpg

967 ms

img29.gif

img29.gif

968 ms

img30.gif

img30.gif

982 ms

img31.gif

img31.gif

1119 ms

img32.gif

img32.gif

1081 ms

img33.gif

img33.gif

1082 ms

img34.gif

img34.gif

1079 ms

img35.gif

img35.gif

992 ms

Accessibility Review

cerna-ricka.cz accessibility score

84

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

cerna-ricka.cz best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

cerna-ricka.cz SEO score

83

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cerna-ricka.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 Cerna-ricka.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

cerna-ricka.cz

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