Tools & Wizards About Us

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

rcobchod.cz

RC modely - RCobchod.cz

Page Load Speed

3.9 sec in total

First Response

398 ms

Resources Loaded

3.2 sec

Page Rendered

299 ms

About Website

Click here to check amazing RCobchod content for Czech Republic. Otherwise, check out these important facts you probably never knew about rcobchod.cz

Tradiční e-shop s RC modely dronů, vrtulníků, letadel, aut, tanků a hromadou náhradních dílů. Zázemí kamenné prodejny. Velké skladové zásoby hraček na dálkové ovládání. Dodání do druhého dne.

Visit rcobchod.cz

Key Findings

We analyzed Rcobchod.cz page load time and found that the first response time was 398 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

rcobchod.cz performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value2,270 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.793

5/100

15%

TTI (Time to Interactive)

Value22.2 s

1/100

10%

Network Requests Diagram

rcobchod.cz

398 ms

rcobchod.cz

399 ms

www.rcobchod.cz

983 ms

LBX-427432.js

244 ms

gtm.js

77 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 68% of them (54 requests) were addressed to the original Rcobchod.cz, 13% (10 requests) were made to Fonts.gstatic.com and 10% (8 requests) were made to Api.mapy.cz. The less responsive or slowest element that took the longest time to load (983 ms) belongs to the original domain Rcobchod.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 300.3 kB (8%)

Content Size

4.0 MB

After Optimization

3.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rcobchod.cz main page is 4.0 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. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 121.8 kB

  • Original 135.8 kB
  • After minification 78.7 kB
  • After compression 14.0 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 57.1 kB, which is 42% 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 121.8 kB or 90% of the original size.

Image Optimization

-4%

Potential reduce by 147.2 kB

  • Original 3.4 MB
  • After minification 3.3 MB

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. RCobchod images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 17.5 kB

  • Original 346.2 kB
  • After minification 346.2 kB
  • After compression 328.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-20%

Potential reduce by 13.9 kB

  • Original 71.3 kB
  • After minification 71.3 kB
  • After compression 57.4 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. Rcobchod.cz needs all CSS files to be minified and compressed as it can save up to 13.9 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (59%)

Requests Now

66

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RCobchod. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

rcobchod.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

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

Links do not have a discernible name

Best Practices

rcobchod.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

Page has valid source maps

SEO Factors

rcobchod.cz SEO score

91

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 Rcobchod.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 Rcobchod.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

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