Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

Page Load Speed

8 sec in total

First Response

344 ms

Resources Loaded

7.1 sec

Page Rendered

514 ms

rc-foto.cz screenshot

About Website

Click here to check amazing Rc Foto content. Otherwise, check out these important facts you probably never knew about rc-foto.cz

Vše o RC modelech letadel a fotografování ze vzduchu. E-shop s modelářským zbožím, návody, postupy, recenze.

Visit rc-foto.cz

Key Findings

We analyzed Rc-foto.cz page load time and found that the first response time was 344 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

rc-foto.cz performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value2,920 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

Network Requests Diagram

rc-foto.cz

344 ms

www.rc-zoom.cz

1549 ms

css

25 ms

rczoom.css

237 ms

jquery-1.8.3.min.js

604 ms

Our browser made a total of 174 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Rc-foto.cz, 84% (146 requests) were made to Rc-zoom.cz and 10% (17 requests) were made to Miniaplikace.blueboard.cz. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Rc-zoom.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 516.5 kB (7%)

Content Size

7.6 MB

After Optimization

7.1 MB

In fact, the total size of Rc-foto.cz main page is 7.6 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. 55% of websites need less resources to load. Images take 7.3 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 78.2 kB

  • Original 90.6 kB
  • After minification 75.7 kB
  • After compression 12.4 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 14.8 kB, which is 16% 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 78.2 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 295.4 kB

  • Original 7.3 MB
  • After minification 7.0 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. Rc Foto images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 118.4 kB

  • Original 183.0 kB
  • After minification 181.0 kB
  • After compression 64.6 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 118.4 kB or 65% of the original size.

CSS Optimization

-81%

Potential reduce by 24.5 kB

  • Original 30.4 kB
  • After minification 26.4 kB
  • After compression 5.9 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. Rc-foto.cz needs all CSS files to be minified and compressed as it can save up to 24.5 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (20%)

Requests Now

166

After Optimization

132

The browser has sent 166 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rc Foto. 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.

Accessibility Review

rc-foto.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-*] attributes do not match their roles

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

Best Practices

rc-foto.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Browser errors were logged to the console

SEO Factors

rc-foto.cz SEO score

91

Search Engine Optimization Advices

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

    N/A

  • Language Claimed

    CS

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rc-foto.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Rc-foto.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

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