Access ocasky.cz. ocásky.cz | Milujeme zvířata

Report Summary

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

59/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.052

99/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

ocasky.cz

453 ms

www.ocasky.cz

818 ms

views.css

229 ms

css_5d76466319f5f03145a5743aaaa367f4.css

347 ms

jquery.min.js

337 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 79% of them (86 requests) were addressed to the original Ocasky.cz, 6% (6 requests) were made to Pagead2.googlesyndication.com and 6% (6 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Ocasky.cz.

Content Size

1.1 MB

After Optimization

1.0 MB

In fact, the total size of Ocasky.cz main page is 1.1 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. 45% of websites need less resources to load. Images take 536.2 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 73.5 kB

Original 88.7 kB
After minification 80.0 kB
After compression 15.2 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 73.5 kB or 83% of the original size.

Image Optimization

-4%

Potential reduce by 22.2 kB

Original 536.2 kB
After minification 514.1 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. Ocasky images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 12.5 kB

Original 473.4 kB
After minification 473.1 kB
After compression 461.0 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

-3%

Potential reduce by 790 B

Original 24.2 kB
After minification 24.2 kB
After compression 23.4 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. Ocasky.cz has all CSS files already compressed.

Requests Now

101

After Optimization

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ocasky. 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.

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 the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

<input type="image"> elements do not have [alt] text

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

Displays images with incorrect aspect ratio

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

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 Ocasky.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 Ocasky.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

ocasky.cz

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

ocásky.cz | Milujeme zvířata

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)