Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

stat.ebm.cz

Ebm dokumenty

Page Load Speed

2.8 sec in total

First Response

347 ms

Resources Loaded

2.3 sec

Page Rendered

137 ms

stat.ebm.cz screenshot

About Website

Visit stat.ebm.cz now to see the best up-to-date Stat Ebm content and also check out these interesting facts you probably never knew about stat.ebm.cz

Web site created using create-react-app

Visit stat.ebm.cz

Key Findings

We analyzed Stat.ebm.cz page load time and found that the first response time was 347 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

stat.ebm.cz performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.5 s

100/100

25%

SI (Speed Index)

Value2.4 s

98/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

index.php

347 ms

screen.css

240 ms

topmenu.js

240 ms

bg.jpg

120 ms

en_menu01.gif

225 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that all of those requests were addressed to Stat.ebm.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (918 ms) belongs to the original domain Stat.ebm.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 11.2 kB (39%)

Content Size

28.5 kB

After Optimization

17.3 kB

In fact, the total size of Stat.ebm.cz main page is 28.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 14.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 6.6 kB

  • Original 8.1 kB
  • After minification 7.0 kB
  • After compression 1.5 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 1.1 kB, which is 14% 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 6.6 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 14.5 kB
  • After minification 14.5 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. Stat Ebm images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 607 B

  • Original 1.1 kB
  • After minification 946 B
  • After compression 449 B

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 607 B or 57% of the original size.

CSS Optimization

-82%

Potential reduce by 4.0 kB

  • Original 4.9 kB
  • After minification 3.9 kB
  • After compression 884 B

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. Stat.ebm.cz needs all CSS files to be minified and compressed as it can save up to 4.0 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (79%)

Requests Now

33

After Optimization

7

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stat Ebm. 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.

Accessibility Review

stat.ebm.cz accessibility score

76

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

Image elements do not have [alt] attributes

Best Practices

stat.ebm.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

High

Browser errors were logged to the console

SEO Factors

stat.ebm.cz SEO score

85

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stat.ebm.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Stat.ebm.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 Stat Ebm. 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: