Tools & Wizards About Us

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

vivobarefoot.cz

VIVOBAREFOOT - sportovní a společenské barefoot boty - eshop

Page Load Speed

9.5 sec in total

First Response

488 ms

Resources Loaded

8.2 sec

Page Rendered

806 ms

About Website

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

Značkový eshop VIVOBAREFOOT nabízí sportovní i společenské barefoot boty pro celou rodinu. Boty mají ultratenkou podrážku pro přirozený pohyb jako naboso!

Visit vivobarefoot.cz

Key Findings

We analyzed Vivobarefoot.cz page load time and found that the first response time was 488 ms and then it took 9 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

vivobarefoot.cz performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value12.5 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value1,240 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

vivobarefoot.cz

488 ms

www.vivobarefoot.cz

4026 ms

nro8oop.css

97 ms

app.da497766.css

612 ms

home.997fb25e.css

715 ms

Our browser made a total of 184 requests to load all elements on the main page. We found that 4% of them (7 requests) were addressed to the original Vivobarefoot.cz, 59% (109 requests) were made to Data.vivobarefoot.cz and 4% (8 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (4 sec) belongs to the original domain Vivobarefoot.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 487.5 kB (5%)

Content Size

9.0 MB

After Optimization

8.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vivobarefoot.cz main page is 9.0 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 8.1 MB which makes up the majority of the site volume.

HTML Optimization

-94%

Potential reduce by 436.7 kB

  • Original 465.8 kB
  • After minification 392.4 kB
  • After compression 29.1 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 73.4 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 436.7 kB or 94% of the original size.

Image Optimization

-0%

Potential reduce by 38.3 kB

  • Original 8.1 MB
  • After minification 8.0 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. VIVOBAREFOOT images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 12.5 kB

  • Original 418.6 kB
  • After minification 417.6 kB
  • After compression 406.1 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

-0%

Potential reduce by 5 B

  • Original 29.8 kB
  • After minification 29.8 kB
  • After compression 29.8 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. Vivobarefoot.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 63 (38%)

Requests Now

167

After Optimization

104

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 167 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VIVOBAREFOOT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 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

vivobarefoot.cz accessibility score

79

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

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

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

vivobarefoot.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Requests the geolocation permission on page load

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

vivobarefoot.cz SEO score

92

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 uses legible font sizes

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 Vivobarefoot.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 Vivobarefoot.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 VIVOBAREFOOT. 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: