Tools & Wizards About Us
instalco.pl screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

instalco.pl

Ogrzewanie podłogowe, centralne, technika grzewcza - sklep InstalCO

Page Load Speed

2 sec in total

First Response

385 ms

Resources Loaded

1.4 sec

Page Rendered

233 ms

instalco.pl screenshot

About Website

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

Ogrzewanie podłogowe, smart home i maty elektryczne - to tylko niektóre z naszych produktów. Znajdziesz u nas także płyty energooszczędne, rozdzielacze, akcesoria hydrauliczne i materiały instalacyjne...

Visit instalco.pl

Key Findings

We analyzed Instalco.pl page load time and found that the first response time was 385 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 30% of websites can load faster.

Performance Metrics

instalco.pl performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value7.7 s

25/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.092

91/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

instalco.pl

385 ms

style.css

139 ms

exmplmenu_var.js

238 ms

menu_com.js

239 ms

jquery.js

231 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 91% of them (29 requests) were addressed to the original Instalco.pl, 6% (2 requests) were made to Adstat.4u.pl and 3% (1 request) were made to Stat.4u.pl. The less responsive or slowest element that took the longest time to load (723 ms) belongs to the original domain Instalco.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 87.1 kB (33%)

Content Size

262.3 kB

After Optimization

175.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Instalco.pl main page is 262.3 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. Only 10% of websites need less resources to load. Images take 196.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 26.8 kB

  • Original 36.4 kB
  • After minification 32.8 kB
  • After compression 9.6 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 26.8 kB or 74% of the original size.

Image Optimization

-19%

Potential reduce by 38.1 kB

  • Original 196.6 kB
  • After minification 158.5 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, InstalCO needs image optimization as it can save up to 38.1 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 21.9 kB

  • Original 28.7 kB
  • After minification 23.8 kB
  • After compression 6.8 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 21.9 kB or 76% of the original size.

CSS Optimization

-61%

Potential reduce by 441 B

  • Original 727 B
  • After minification 539 B
  • After compression 286 B

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. Instalco.pl needs all CSS files to be minified and compressed as it can save up to 441 B or 61% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

29

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of InstalCO. According to our analytics all requests are already optimized.

Network Requests Diagram

instalco.pl

instalco.pl

385 ms

style.css

style.css

139 ms

exmplmenu_var.js

exmplmenu_var.js

238 ms

menu_com.js

menu_com.js

239 ms

jquery.js

jquery.js

231 ms

main.js

main.js

232 ms

s.js

s.js

275 ms

s4u.gif

s4u.gif

219 ms

backg.png

backg.png

248 ms

baner.jpg

baner.jpg

444 ms

kisan1.jpg

kisan1.jpg

332 ms

stelrad2.gif

stelrad2.gif

242 ms

viessmann2.gif

viessmann2.gif

220 ms

immergas2.gif

immergas2.gif

243 ms

cersanit2.gif

cersanit2.gif

339 ms

tia2.gif

tia2.gif

353 ms

imi2.gif

imi2.gif

363 ms

dyka.gif

dyka.gif

365 ms

solarM.jpg

solarM.jpg

446 ms

firma2.jpg

firma2.jpg

682 ms

01.jpg

01.jpg

572 ms

l_847875.jpg

l_847875.jpg

723 ms

l_942932.jpg

l_942932.jpg

602 ms

wiertnica.jpg

wiertnica.jpg

554 ms

kropki.jpg

kropki.jpg

561 ms

pogoda.gif

pogoda.gif

713 ms

pasek.jpg

pasek.jpg

696 ms

instalco_03.jpg

instalco_03.jpg

606 ms

instalco_05.jpg

instalco_05.jpg

618 ms

s.cgi

s.cgi

229 ms

tridown.gif

tridown.gif

120 ms

tri.gif

tri.gif

125 ms

Accessibility Review

instalco.pl accessibility score

61

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

Form elements do not have associated labels

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

instalco.pl best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

instalco.pl SEO score

92

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

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

    ISO-8859-2

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Instalco.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 Instalco.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

instalco.pl

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