Access krytiny-strechy.cz. Střešní krytiny - info portál o střechách a střešních materiálech

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value9.4 s

12/100

10%

TBT (Total Blocking Time)

Value670 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value15.8 s

6/100

10%

krytiny-strechy.cz

326 ms

www.krytiny-strechy.cz

1511 ms

scripts-library.js

879 ms

styles-library.css

572 ms

style-100913.css

715 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Krytiny-strechy.cz, 76% (57 requests) were made to Data.krytinystrechy.cz and 4% (3 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Krytiny-strechy.cz.

Content Size

1.5 MB

After Optimization

1.3 MB

In fact, the total size of Krytiny-strechy.cz main page is 1.5 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. 65% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 102.1 kB

Original 124.8 kB
After minification 113.8 kB
After compression 22.7 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 102.1 kB or 82% of the original size.

Image Optimization

-11%

Potential reduce by 118.6 kB

Original 1.0 MB
After minification 922.1 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, Krytiny Strechy needs image optimization as it can save up to 118.6 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 34.5 kB

Original 353.0 kB
After minification 352.9 kB
After compression 318.5 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

-21%

Potential reduce by 5.9 kB

Original 27.7 kB
After minification 27.7 kB
After compression 21.8 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. Krytiny-strechy.cz needs all CSS files to be minified and compressed as it can save up to 5.9 kB or 21% of the original size.

Requests Now

After Optimization

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Krytiny Strechy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

robots.txt is not valid

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 Krytiny-strechy.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 Krytiny-strechy.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

krytiny-strechy.cz

Open Graph data is detected on the main page of Krytiny Strechy. 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

Střešní krytiny - info portál o střechách a střešních materiálech | Krytiny-střechy.cz

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

krytiny-strechy.cz

www.krytiny-strechy.cz

scripts-library.js

styles-library.css

style-100913.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

krytiny-strechy.cz

www.krytiny-strechy.cz

scripts-library.js

styles-library.css

style-100913.css

trixam.min.js

addthis_widget.js

jquery-ui.min.js

d8de3da49587eedb4074eff49fed19da.js

ccbundle2.min.js

mericikod-ga.js

retargeting.js

analytics.js

gtm.js

fbevents.js

loader.js

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