Access stil.cz. Školní batohy a potřeby do školy od české firmy

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%

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.

Content Size

441.8 kB

After Optimization

322.5 kB

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 Now

After Optimization

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.

Accessibility Issues

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.

High

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

High

ARIA IDs are not unique

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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

stil.cz

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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Školní batohy a potřeby do školy od české firmy | STIL

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

www.stil.cz

www.stil.cz

_critical.scss.css

slick.css

slick-theme.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

www.stil.cz

www.stil.cz

_critical.scss.css

slick.css

slick-theme.css

js

jquery-3.4.1.min.js

_main.js.min.js

slick.js

rc.js

webfont.js

css

css

gjs.php

fbevents.js

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