Tools & Wizards About Us

Report Summary

  • 39

    Performance

    Renders faster than
    58% 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

  • 89

    SEO

    Google-friendlier than
    66% of websites

stil.cz

Školní batohy a potřeby do školy od české firmy | STIL

Page Load Speed

5.4 sec in total

First Response

431 ms

Resources Loaded

4.5 sec

Page Rendered

499 ms

About Website

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

Krásné a kvalitní školní batohy, aktovky, penály a školní potřeby ve stejných designových setech pro radost a zdraví našich dětí.

Visit stil.cz

Key Findings

We analyzed Stil.cz page load time and found that the first response time was 431 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

stil.cz performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value9.6 s

0/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value600 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

www.stil.cz

431 ms

www.stil.cz

911 ms

_critical.scss.css

175 ms

slick.css

262 ms

slick-theme.css

348 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 18% of them (14 requests) were addressed to the original Stil.cz, 69% (53 requests) were made to Helma365.s25.cdn-upgates.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source Helma365.s25.cdn-upgates.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 119.3 kB (27%)

Content Size

441.8 kB

After Optimization

322.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stil.cz main page is 441.8 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. 45% of websites need less resources to load. Javascripts take 144.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 108.7 kB

  • Original 135.9 kB
  • After minification 129.2 kB
  • After compression 27.3 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 108.7 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 5.9 kB

  • Original 118.9 kB
  • After minification 113.0 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. STIL images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 4.4 kB

  • Original 144.2 kB
  • After minification 144.2 kB
  • After compression 139.7 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

-1%

Potential reduce by 369 B

  • Original 42.8 kB
  • After minification 42.8 kB
  • After compression 42.4 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. Stil.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (15%)

Requests Now

71

After Optimization

60

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of STIL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 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

stil.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

button, link, and menuitem elements do not have accessible names.

High

ARIA IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

stil.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

stil.cz SEO score

89

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

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 Stil.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 Stil.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 data is detected on the main page of STIL. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: