Access felkel.cz. The domain name is registered

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value0.6 s

100/100

10%

felkel.cz

563 ms

logo_forpsi.gif

108 ms

flag_uk.gif

211 ms

flag_ck.gif

212 ms

flag_sk.gif

214 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that all of those requests were addressed to Felkel.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (563 ms) belongs to the original domain Felkel.cz.

Content Size

3.9 kB

After Optimization

1.8 kB

In fact, the total size of Felkel.cz main page is 3.9 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 3.1 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 2.0 kB

Original 3.1 kB
After minification 3.0 kB
After compression 1.2 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 2.0 kB or 63% of the original size.

Image Optimization

-18%

Potential reduce by 134 B

Original 758 B
After minification 624 B

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, Felkel needs image optimization as it can save up to 134 B or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Now

After Optimization

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Felkel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests 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 interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Search Engine Optimization Advices

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

High

Page is blocked from indexing

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

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

EN
Language Claimed

N/A
Encoding

WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Felkel.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Felkel.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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