Access sailingcentrum.cz. Sailingcentrum.cz | Prodej a půjčovna vybavení pro jachting

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value2,050 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.211

59/100

15%

TTI (Time to Interactive)

Value14.4 s

9/100

10%

sailingcentrum.cz

351 ms

www.sailingcentrum.cz

936 ms

style.less

3236 ms

font-awesome.min.css

46 ms

jquery

496 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 22% of them (13 requests) were addressed to the original Sailingcentrum.cz, 40% (24 requests) were made to Webmiumeshopblob.azureedge.net and 8% (5 requests) were made to Webmiumeuwest.blob.core.windows.net. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Sailingcentrum.cz.

Content Size

953.5 kB

After Optimization

819.3 kB

In fact, the total size of Sailingcentrum.cz main page is 953.5 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. 65% of websites need less resources to load. Images take 643.9 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 77.7 kB

Original 93.2 kB
After minification 69.0 kB
After compression 15.6 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 24.2 kB, which is 26% 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 77.7 kB or 83% of the original size.

Image Optimization

-9%

Potential reduce by 55.5 kB

Original 643.9 kB
After minification 588.4 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. Sailingcentrum images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 394 B

Original 214.9 kB
After minification 214.9 kB
After compression 214.5 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

-43%

Potential reduce by 642 B

Original 1.5 kB
After minification 1.5 kB
After compression 840 B

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. Sailingcentrum.cz needs all CSS files to be minified and compressed as it can save up to 642 B or 43% of the original size.

Requests Now

After Optimization

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sailingcentrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

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

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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

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 Sailingcentrum.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 Sailingcentrum.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

sailingcentrum.cz

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Sailingcentrum.cz | Prodej a půjčovna vybavení pro jachting | Sailingcentrum.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

sailingcentrum.cz

www.sailingcentrum.cz

style.less

font-awesome.min.css

jquery

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

sailingcentrum.cz

www.sailingcentrum.cz

style.less

font-awesome.min.css

jquery

angularjs

cookieconsent.js

home.jquery.js

angularjs-services

scripts

api:client.js

css

owl.carousel.css

owl.theme.default.css

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27460aab-aaf6-4304-bc96-5298130a63c7_org.jpg

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copyright-logo.png

gtm.js

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font

iconfont.woff