Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

wentylatory.info.pl

Wentylatory.info.pl - Portal o Wentylacji i Rekuperacji.

Page Load Speed

6 sec in total

First Response

450 ms

Resources Loaded

5.2 sec

Page Rendered

335 ms

wentylatory.info.pl screenshot

About Website

Click here to check amazing Wentylatory content. Otherwise, check out these important facts you probably never knew about wentylatory.info.pl

Serwis poświęcony wentylacji tj. wentylatorom, rekuperatorom, odpylaczom i innym. Znajdziesz tu forum eksperckie, katalog firm i dystrybutorów z branży oraz bezpłatne ogłoszenia. Umożliwiamy zapoznani...

Visit wentylatory.info.pl

Key Findings

We analyzed Wentylatory.info.pl page load time and found that the first response time was 450 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

wentylatory.info.pl performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value17.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value18.7 s

0/100

25%

SI (Speed Index)

Value19.4 s

0/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.096

90/100

15%

TTI (Time to Interactive)

Value20.3 s

2/100

10%

Network Requests Diagram

wentylatory.info.pl

450 ms

www.wentylatory.info.pl

1493 ms

style.css

337 ms

Segoe_UI_Light_300-Segoe_UI_700-Segoe_UI_italic_400-Segoe_UI_italic_700.font.js

1331 ms

maps

50 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 93% of them (70 requests) were addressed to the original Wentylatory.info.pl, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Maps.google.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Wentylatory.info.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.6 MB (76%)

Content Size

3.4 MB

After Optimization

828.8 kB

In fact, the total size of Wentylatory.info.pl main page is 3.4 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. 40% of websites need less resources to load. Javascripts take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 103.7 kB

  • Original 117.0 kB
  • After minification 109.1 kB
  • After compression 13.3 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 103.7 kB or 89% of the original size.

Image Optimization

-60%

Potential reduce by 350.5 kB

  • Original 584.0 kB
  • After minification 233.4 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. Obviously, Wentylatory needs image optimization as it can save up to 350.5 kB or 60% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-79%

Potential reduce by 2.1 MB

  • Original 2.7 MB
  • After minification 2.5 MB
  • After compression 573.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 2.1 MB or 79% of the original size.

CSS Optimization

-84%

Potential reduce by 46.4 kB

  • Original 55.2 kB
  • After minification 40.7 kB
  • After compression 8.9 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. Wentylatory.info.pl needs all CSS files to be minified and compressed as it can save up to 46.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (49%)

Requests Now

73

After Optimization

37

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wentylatory. 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 from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

wentylatory.info.pl accessibility score

55

Accessibility Issues

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

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

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

wentylatory.info.pl 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

wentylatory.info.pl SEO score

69

Search Engine Optimization Advices

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

    N/A

  • Language Claimed

    PL

  • Encoding

    ISO-8859-2

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Wentylatory.info.pl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Polish. Our system also found out that Wentylatory.info.pl main page’s claimed encoding is iso-8859-2. 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 Wentylatory. 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: