Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 41

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

centralne-odkurzacze.net

Odkurzacze centralne i akcesoria | Sklep internetowy - centralne-odkurzacze.net

Page Load Speed

12.9 sec in total

First Response

3.3 sec

Resources Loaded

8.9 sec

Page Rendered

693 ms

centralne-odkurzacze.net screenshot

About Website

Click here to check amazing Centralne Odkurzacze content. Otherwise, check out these important facts you probably never knew about centralne-odkurzacze.net

Szeroka oferta odkurzaczy centralnych i akcesoriów dostępna online w naszym sklepie. Promocyjne zestawy i akcesoria dodatkowe.

Visit centralne-odkurzacze.net

Key Findings

We analyzed Centralne-odkurzacze.net page load time and found that the first response time was 3.3 sec and then it took 9.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

centralne-odkurzacze.net performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value1,760 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.214

58/100

15%

TTI (Time to Interactive)

Value23.7 s

1/100

10%

Network Requests Diagram

centralne-odkurzacze.net

3311 ms

global.css

1190 ms

highdpi.css

689 ms

responsive-tables.css

690 ms

uniform.default.css

687 ms

Our browser made a total of 186 requests to load all elements on the main page. We found that 88% of them (164 requests) were addressed to the original Centralne-odkurzacze.net, 3% (6 requests) were made to Wkladykominkowe.net.pl and 3% (5 requests) were made to Static.payu.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Centralne-odkurzacze.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 657.2 kB (26%)

Content Size

2.5 MB

After Optimization

1.8 MB

In fact, the total size of Centralne-odkurzacze.net main page is 2.5 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. 60% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 329.7 kB

  • Original 366.9 kB
  • After minification 366.9 kB
  • After compression 37.2 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 329.7 kB or 90% of the original size.

Image Optimization

-17%

Potential reduce by 278.7 kB

  • Original 1.7 MB
  • After minification 1.4 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. Obviously, Centralne Odkurzacze needs image optimization as it can save up to 278.7 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 3.7 kB

  • Original 394.3 kB
  • After minification 394.0 kB
  • After compression 390.6 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

-59%

Potential reduce by 45.2 kB

  • Original 76.8 kB
  • After minification 38.3 kB
  • After compression 31.6 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. Centralne-odkurzacze.net needs all CSS files to be minified and compressed as it can save up to 45.2 kB or 59% of the original size.

Requests Breakdown

Number of requests can be reduced by 65 (36%)

Requests Now

180

After Optimization

115

The browser has sent 180 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centralne Odkurzacze. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 49 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

centralne-odkurzacze.net accessibility score

41

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

centralne-odkurzacze.net best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

centralne-odkurzacze.net SEO score

83

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

Mobile Friendly

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/).

Impact

Issue

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 Centralne-odkurzacze.net 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 Centralne-odkurzacze.net 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 Centralne Odkurzacze. 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: