Tools & Wizards About Us

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

wcn.pl

Numizmatyka, złote monety bulionowe, stare monety polskie - Warszawskie Centrum Numizmatyczne

Page Load Speed

2 sec in total

First Response

423 ms

Resources Loaded

1.2 sec

Page Rendered

321 ms

About Website

Welcome to wcn.pl homepage info - get ready to check Wcn best content for Poland right away, or after learning these important things about wcn.pl

Profesjonalna firma numizmatyczna - skup, sprzedaż i wycena złotych monet bulionowych, starych, polskich monet, banknotów, medali, orderów i innych przedmiotów numizmatyki o wartości kolekcjonerskiej.

Visit wcn.pl

Key Findings

We analyzed Wcn.pl page load time and found that the first response time was 423 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

wcn.pl performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value140 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value6.0 s

64/100

10%

Network Requests Diagram

wcn.pl

423 ms

jquery-ui.1425682499.css

111 ms

wcn.1447947657.css

224 ms

jquery.min.js

32 ms

jquery-ui.min.js

51 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 46% of them (18 requests) were addressed to the original Wcn.pl, 18% (7 requests) were made to Apis.google.com and 13% (5 requests) were made to Foto.wcn.pl. The less responsive or slowest element that took the longest time to load (528 ms) relates to the external source Static.onebid.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 117.2 kB (39%)

Content Size

298.5 kB

After Optimization

181.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Wcn.pl main page is 298.5 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. 35% of websites need less resources to load. Images take 140.3 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 25.5 kB

  • Original 37.4 kB
  • After minification 26.7 kB
  • After compression 11.9 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. This page needs HTML code to be minified as it can gain 10.7 kB, which is 29% 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 25.5 kB or 68% of the original size.

Image Optimization

-7%

Potential reduce by 9.7 kB

  • Original 140.3 kB
  • After minification 130.7 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. Wcn images are well optimized though.

JavaScript Optimization

-48%

Potential reduce by 26.5 kB

  • Original 54.7 kB
  • After minification 54.7 kB
  • After compression 28.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 26.5 kB or 48% of the original size.

CSS Optimization

-84%

Potential reduce by 55.5 kB

  • Original 66.0 kB
  • After minification 47.9 kB
  • After compression 10.5 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. Wcn.pl needs all CSS files to be minified and compressed as it can save up to 55.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (30%)

Requests Now

37

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wcn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

wcn.pl accessibility score

47

Accessibility Issues

Names and labels

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.

Impact

Issue

High

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

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

Best Practices

wcn.pl best practices score

50

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

wcn.pl SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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 Wcn.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 Wcn.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

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