Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

wisterm.pl

WISTERM - Kompleksowe Rozwiązania Grzewcze i Sanitarne

Page Load Speed

4.3 sec in total

First Response

356 ms

Resources Loaded

3.9 sec

Page Rendered

114 ms

wisterm.pl screenshot

About Website

Click here to check amazing WISTERM content. Otherwise, check out these important facts you probably never knew about wisterm.pl

Sprzedaż, montaż, modernizacje, serwis techniczny - gwarancyjny oraz pogwarancyjny.

Visit wisterm.pl

Key Findings

We analyzed Wisterm.pl page load time and found that the first response time was 356 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

wisterm.pl performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value19.3 s

0/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

Network Requests Diagram

wisterm.pl

356 ms

www.wisterm.pl

2580 ms

mootools.js

240 ms

caption.js

233 ms

system.css

262 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 79% of them (31 requests) were addressed to the original Wisterm.pl, 8% (3 requests) were made to Pagead2.googlesyndication.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Wisterm.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 69.5 kB (13%)

Content Size

515.8 kB

After Optimization

446.3 kB

In fact, the total size of Wisterm.pl main page is 515.8 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. 25% of websites need less resources to load. Javascripts take 317.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 21.4 kB

  • Original 28.2 kB
  • After minification 27.0 kB
  • After compression 6.8 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 21.4 kB or 76% of the original size.

Image Optimization

-14%

Potential reduce by 22.5 kB

  • Original 161.9 kB
  • After minification 139.3 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, WISTERM needs image optimization as it can save up to 22.5 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-7%

Potential reduce by 23.7 kB

  • Original 317.8 kB
  • After minification 317.8 kB
  • After compression 294.1 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

-24%

Potential reduce by 1.9 kB

  • Original 7.9 kB
  • After minification 7.9 kB
  • After compression 6.0 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. Wisterm.pl needs all CSS files to be minified and compressed as it can save up to 1.9 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (58%)

Requests Now

36

After Optimization

15

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of WISTERM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

wisterm.pl accessibility score

87

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

Form elements do not have associated labels

Tables and lists

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

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

wisterm.pl best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Page has valid source maps

SEO Factors

wisterm.pl SEO score

77

Search Engine Optimization Advices

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 Wisterm.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 Wisterm.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 WISTERM. 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: