Tools & Wizards About Us
acontax.cz screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

acontax.cz

Hlavní stránka - ACONTAX - Kurzy účetnictví Brno

Page Load Speed

4.2 sec in total

First Response

342 ms

Resources Loaded

3.2 sec

Page Rendered

726 ms

acontax.cz screenshot

About Website

Welcome to acontax.cz homepage info - get ready to check ACONTAX best content right away, or after learning these important things about acontax.cz

Akreditované vzdělávací kurzy účetnictví a daňové problematiky v Brně, služby účetního a daňového poradenství.

Visit acontax.cz

Key Findings

We analyzed Acontax.cz page load time and found that the first response time was 342 ms and then it took 3.9 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

acontax.cz performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

8/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value3,180 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.091

92/100

15%

TTI (Time to Interactive)

Value15.7 s

6/100

10%

Network Requests Diagram

acontax.cz

342 ms

www.acontax.cz

929 ms

style.css

121 ms

screen.css

226 ms

lightbox.css

230 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Acontax.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Acontax.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 274.2 kB (7%)

Content Size

4.1 MB

After Optimization

3.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Acontax.cz main page is 4.1 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. 30% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 22.5 kB

  • Original 28.5 kB
  • After minification 20.5 kB
  • After compression 6.0 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 8.0 kB, which is 28% 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 22.5 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 65.5 kB

  • Original 3.9 MB
  • After minification 3.8 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. ACONTAX images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 124.5 kB

  • Original 179.8 kB
  • After minification 169.5 kB
  • After compression 55.4 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 124.5 kB or 69% of the original size.

CSS Optimization

-85%

Potential reduce by 61.7 kB

  • Original 72.7 kB
  • After minification 53.4 kB
  • After compression 11.0 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. Acontax.cz needs all CSS files to be minified and compressed as it can save up to 61.7 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (32%)

Requests Now

19

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ACONTAX. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

acontax.cz

acontax.cz

342 ms

www.acontax.cz

www.acontax.cz

929 ms

style.css

style.css

121 ms

screen.css

screen.css

226 ms

lightbox.css

lightbox.css

230 ms

plugins.js

plugins.js

442 ms

script.js

script.js

228 ms

common.js

common.js

231 ms

formcheck.js

formcheck.js

239 ms

headmenu.png

headmenu.png

121 ms

acontax.png

acontax.png

119 ms

sprite.png

sprite.png

122 ms

2.png

2.png

645 ms

_IMG_6740.JPG

_IMG_6740.JPG

1169 ms

_IMG_6737.JPG

_IMG_6737.JPG

1073 ms

_IMG_6748.JPG

_IMG_6748.JPG

1085 ms

line-x.png

line-x.png

240 ms

line-y.png

line-y.png

241 ms

facebook.png

facebook.png

354 ms

netwings.png

netwings.png

357 ms

OpenSans-Regular.woff

OpenSans-Regular.woff

577 ms

OpenSans-Bold.woff

OpenSans-Bold.woff

474 ms

OpenSans-Italic.woff

OpenSans-Italic.woff

597 ms

OpenSans-BoldItalic.woff

OpenSans-BoldItalic.woff

696 ms

FontAwesome.woff

FontAwesome.woff

719 ms

print.css

print.css

120 ms

Accessibility Review

acontax.cz accessibility score

91

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

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

High

Links do not have a discernible name

Best Practices

acontax.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

acontax.cz SEO score

82

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 doesn't use 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 Acontax.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 Acontax.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

acontax.cz

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