Tools & Wizards About Us

Report Summary

  • 49

    Performance

    Renders faster than
    67% 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

  • 90

    SEO

    Google-friendlier than
    68% of websites

proglas.cz

Rádio pro vlídný domov - Radio Proglas

Page Load Speed

4.1 sec in total

First Response

332 ms

Resources Loaded

3.6 sec

Page Rendered

238 ms

About Website

Welcome to proglas.cz homepage info - get ready to check Proglas best content for Czech Republic right away, or after learning these important things about proglas.cz

Web neziskové, nestátní, nekomerční rozhlasové stanice pro celou informovanou rodinu; staví na křesťanských základech. Nevysílá reklamu. Žije z podpory posluchačů.

Visit proglas.cz

Key Findings

We analyzed Proglas.cz page load time and found that the first response time was 332 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

proglas.cz performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value420 ms

66/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

proglas.cz

332 ms

www.proglas.cz

1312 ms

lib.js

314 ms

main.css

628 ms

print.css

210 ms

Our browser made a total of 121 requests to load all elements on the main page. We found that 79% of them (95 requests) were addressed to the original Proglas.cz, 8% (10 requests) were made to Static.xx.fbcdn.net and 7% (8 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Proglas.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 444.5 kB (41%)

Content Size

1.1 MB

After Optimization

627.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Proglas.cz main page is 1.1 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. 50% of websites need less resources to load. Images take 530.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 53.3 kB

  • Original 70.3 kB
  • After minification 69.9 kB
  • After compression 17.0 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. 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 53.3 kB or 76% of the original size.

Image Optimization

-10%

Potential reduce by 53.6 kB

  • Original 530.8 kB
  • After minification 477.2 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. Proglas images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 237.7 kB

  • Original 354.0 kB
  • After minification 344.6 kB
  • After compression 116.2 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 237.7 kB or 67% of the original size.

CSS Optimization

-86%

Potential reduce by 99.9 kB

  • Original 116.8 kB
  • After minification 92.1 kB
  • After compression 16.9 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. Proglas.cz needs all CSS files to be minified and compressed as it can save up to 99.9 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 51 (43%)

Requests Now

119

After Optimization

68

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 119 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Proglas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

proglas.cz accessibility score

86

Accessibility Issues

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

Buttons do not have an accessible name

High

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

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.

Best Practices

proglas.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

proglas.cz SEO score

90

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Proglas.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 Proglas.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 Proglas. 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: