Tools & Wizards About Us

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

ares-registr.cz

Ares Registr.cz - Administrativní registr ekonomických subjektů

Page Load Speed

1.1 sec in total

First Response

260 ms

Resources Loaded

766 ms

Page Rendered

89 ms

About Website

Click here to check amazing Ares Registr content for Czech Republic. Otherwise, check out these important facts you probably never knew about ares-registr.cz

Ares-registr.cz - Ares-Registr.cz - ARES je zkratka pro Administrativní registr ekonomických subjektů, což je inforamční systém určený pro vyhledávání v registrech České republiky, kde jsou zaznamenán...

Visit ares-registr.cz

Key Findings

We analyzed Ares-registr.cz page load time and found that the first response time was 260 ms and then it took 855 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

ares-registr.cz performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.9 s

88/100

10%

Network Requests Diagram

ares-registr.cz

260 ms

style.css

313 ms

konfigurace.css

316 ms

style-predstaveni.css

319 ms

jquery-1.4.4.min.js

335 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Ares-registr.cz, 71% (12 requests) were made to Obchodnirejstrik.cz and 12% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (335 ms) relates to the external source Obchodnirejstrik.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 17.7 kB (17%)

Content Size

102.9 kB

After Optimization

85.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ares-registr.cz main page is 102.9 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 53.2 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 12.1 kB

  • Original 16.1 kB
  • After minification 14.8 kB
  • After compression 4.0 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 12.1 kB or 75% of the original size.

Image Optimization

-13%

Potential reduce by 2.3 kB

  • Original 18.0 kB
  • After minification 15.7 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, Ares Registr needs image optimization as it can save up to 2.3 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 1.2 kB

  • Original 53.2 kB
  • After minification 53.2 kB
  • After compression 52.0 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

-14%

Potential reduce by 2.1 kB

  • Original 15.6 kB
  • After minification 15.6 kB
  • After compression 13.5 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. Ares-registr.cz needs all CSS files to be minified and compressed as it can save up to 2.1 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (44%)

Requests Now

16

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ares Registr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ares-registr.cz accessibility score

79

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

ares-registr.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

ares-registr.cz SEO score

77

Search Engine Optimization Advices

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 Ares-registr.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 Ares-registr.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 Ares Registr. 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: