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zamkor.pl screenshot

22

Performance

Renders faster than
40% of other websites
78

Accessibility

Visual factors better than
that of 45% of websites
75

Best Practices

More advanced features
available than in
35% of websites
88

SEO

Google-friendlier than
65% of websites

First Response

780 ms

Resources Loaded

13.3 sec

Page Rendered

1 sec

zamkor.pl screenshot

About Website

Visit zamkor.pl now to see the best up-to-date Zamkor content for Poland and also check out these interesting facts you probably never knew about zamkor.pl

Chcesz sprzedać lub kupić książki? Skupszop to sklep online z tanimi używanymi oraz nowymi książkami. Skupszop to także skup książek używanych z wyceną online. Tak tanie książki tylko u nas! Zapraszam...

Visit zamkor.pl

Key Findings

We analyzed Zamkor.pl page load time and found that the first response time was 780 ms and then it took 14.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value19.2 s

0/100

25%

SI (Speed Index)

Value8.5 s

17/100

10%

TBT (Total Blocking Time)

Value7,050 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.038

100/100

15%

TTI (Time to Interactive)

Value21.6 s

1/100

10%

skupszop.pl

780 ms

css2

32 ms

style.css

323 ms

style.css

285 ms

api.js

32 ms

Our browser made a total of 265 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Zamkor.pl, 2% (4 requests) were made to Google-analytics.com and 2% (4 requests) were made to App3.salesmanago.pl. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Skupszop.pl.

Content Size

4.6 MB

After Optimization

4.0 MB

In fact, the total size of Zamkor.pl main page is 4.6 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. Only a small number of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 538.1 kB

Original 597.0 kB
After minification 596.8 kB
After compression 58.9 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 538.1 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 13.5 kB

Original 3.1 MB
After minification 3.1 MB

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. Zamkor images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 16.1 kB

Original 868.2 kB
After minification 868.2 kB
After compression 852.1 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

-0%

Potential reduce by 33 B

Original 32.8 kB
After minification 32.8 kB
After compression 32.7 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. Zamkor.pl has all CSS files already compressed.

Requests Now

258

After Optimization

208

The browser has sent 258 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zamkor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 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 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 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

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

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

PL
Language Claimed

PL
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zamkor.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Zamkor.pl 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

zamkor.pl

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