Tools & Wizards About Us
sportovni-dum.cz screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

sportovni-dum.cz

Sportovnidum.cz

Page Load Speed

4.9 sec in total

First Response

316 ms

Resources Loaded

4.5 sec

Page Rendered

129 ms

sportovni-dum.cz screenshot

About Website

Click here to check amazing Sportovnidum content. Otherwise, check out these important facts you probably never knew about sportovni-dum.cz

E-shop s jízdními koly a sportovním vybavením. Servis jízdních kol. Prodej značek Stevens, Sram, Shimano, Fox, Pells, Galaxy, Marzocchi, Rock Shox a další. Profesionální přístup ke každému zákazníkovi...

Visit sportovni-dum.cz

Key Findings

We analyzed Sportovni-dum.cz page load time and found that the first response time was 316 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

sportovni-dum.cz performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.0 s

65/100

10%

Network Requests Diagram

sportovni-dum.cz

316 ms

www.sportovnidum.cz

1197 ms

stylesheet.css

635 ms

jquery-ui-1.8.16.custom.css

644 ms

colorbox.css

329 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Sportovni-dum.cz, 92% (35 requests) were made to Sportovnidum.cz and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Sportovnidum.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 414.1 kB (67%)

Content Size

620.5 kB

After Optimization

206.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sportovni-dum.cz main page is 620.5 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. Javascripts take 368.5 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 41.0 kB

  • Original 48.3 kB
  • After minification 38.3 kB
  • After compression 7.4 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 10.0 kB, which is 21% 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 41.0 kB or 85% of the original size.

Image Optimization

-43%

Potential reduce by 57.3 kB

  • Original 132.5 kB
  • After minification 75.2 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. Obviously, Sportovnidum needs image optimization as it can save up to 57.3 kB or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 254.8 kB

  • Original 368.5 kB
  • After minification 344.1 kB
  • After compression 113.7 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 254.8 kB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 61.1 kB

  • Original 71.2 kB
  • After minification 54.0 kB
  • After compression 10.1 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. Sportovni-dum.cz needs all CSS files to be minified and compressed as it can save up to 61.1 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (39%)

Requests Now

36

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sportovnidum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sportovni-dum.cz

sportovni-dum.cz

316 ms

www.sportovnidum.cz

www.sportovnidum.cz

1197 ms

stylesheet.css

stylesheet.css

635 ms

jquery-ui-1.8.16.custom.css

jquery-ui-1.8.16.custom.css

644 ms

colorbox.css

colorbox.css

329 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

865 ms

jquery-ui-1.8.16.custom.min.js

jquery-ui-1.8.16.custom.min.js

1196 ms

jquery.cookie.js

jquery.cookie.js

329 ms

jquery.colorbox.js

jquery.colorbox.js

838 ms

common.js

common.js

746 ms

logo-sportovnidum.cz.png

logo-sportovnidum.cz.png

317 ms

cz.png

cz.png

317 ms

gb.png

gb.png

317 ms

arrow-down.png

arrow-down.png

322 ms

button-search.png

button-search.png

326 ms

servis-jizdnich-kol-brno.png

servis-jizdnich-kol-brno.png

337 ms

background.png

background.png

638 ms

mavic-crossmax-sl-pro-ltd-29-wheelset-2016-142x142.jpg

mavic-crossmax-sl-pro-ltd-29-wheelset-2016-142x142.jpg

748 ms

button.png

button.png

1071 ms

16854-142x142.jpg

16854-142x142.jpg

644 ms

45005-142x142.jpg

45005-142x142.jpg

649 ms

carrera-enigma-142x142.jpg

carrera-enigma-142x142.jpg

659 ms

39842-142x142.jpg

39842-142x142.jpg

961 ms

28128-142x142.jpg

28128-142x142.jpg

965 ms

28132-142x142.jpg

28132-142x142.jpg

977 ms

halti-guide-45-violet-142x142.jpg

halti-guide-45-violet-142x142.jpg

998 ms

11977-142x142.jpg

11977-142x142.jpg

1074 ms

11964-142x142.jpg

11964-142x142.jpg

1281 ms

32821-142x142.jpg

32821-142x142.jpg

1287 ms

38909-142x142.jpg

38909-142x142.jpg

1299 ms

menu.png

menu.png

1314 ms

analytics.js

analytics.js

51 ms

controls.png

controls.png

1353 ms

border.png

border.png

1356 ms

loading_background.png

loading_background.png

1555 ms

loading.gif

loading.gif

1678 ms

ui-bg_highlight-soft_100_eeeeee_1x100.png

ui-bg_highlight-soft_100_eeeeee_1x100.png

1574 ms

collect

collect

25 ms

Accessibility Review

sportovni-dum.cz accessibility score

88

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

Best Practices

sportovni-dum.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

sportovni-dum.cz SEO score

71

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

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 Sportovni-dum.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 Sportovni-dum.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

sportovni-dum.cz

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