Access koh-i-noor.cz. Výtvarné potřeby

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value1,850 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.92

3/100

15%

TTI (Time to Interactive)

Value11.5 s

18/100

10%

koh-i-noor.cz

415 ms

koh-i-noor.cz

376 ms

www.koh-i-noor.cz

972 ms

main.css

335 ms

kohinoor.css

426 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 59% of them (16 requests) were addressed to the original Koh-i-noor.cz, 19% (5 requests) were made to Unpkg.com and 15% (4 requests) were made to Foxer360-media-library.s3.eu-central-1.amazonaws.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Foxer360-media-library.s3.eu-central-1.amazonaws.com.

Content Size

2.4 MB

After Optimization

1.2 MB

In fact, the total size of Koh-i-noor.cz main page is 2.4 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. 20% of websites need less resources to load. HTML takes 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 1.2 MB

Original 1.4 MB
After minification 1.4 MB
After compression 230.2 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 1.2 MB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 953.5 kB
After minification 953.5 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. KOH I NOOR images are well optimized though.

Requests Now

After Optimization

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KOH I NOOR. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 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

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links are not crawlable

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

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koh-i-noor.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Koh-i-noor.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

Open Graph description is not detected on the main page of KOH I NOOR. 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: