Tools & Wizards About Us
kotrem.pl screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

kotrem.pl

Piece na pellet, piec na pelet, piec na węgiel piec zasypowy

Page Load Speed

7.5 sec in total

First Response

396 ms

Resources Loaded

4.7 sec

Page Rendered

2.4 sec

kotrem.pl screenshot

About Website

Click here to check amazing Kotrem content for Poland. Otherwise, check out these important facts you probably never knew about kotrem.pl

Producent kotłów na pellet, piec co na drewno na pelet na drewno, piec zasypowy, piec do palenia drewnem, producent pieców do wegla na pallet

Visit kotrem.pl

Key Findings

We analyzed Kotrem.pl page load time and found that the first response time was 396 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

kotrem.pl performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value17.6 s

0/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value1.248

1/100

15%

TTI (Time to Interactive)

Value6.5 s

59/100

10%

Network Requests Diagram

kotrem.pl

396 ms

kotrem.pl

398 ms

www.kotrem.pl

325 ms

www.kotrem.pl

557 ms

js

65 ms

Our browser made a total of 136 requests to load all elements on the main page. We found that 97% of them (132 requests) were addressed to the original Kotrem.pl, 1% (2 requests) were made to Googletagmanager.com and 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Kotrem.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.9 MB (33%)

Content Size

23.6 MB

After Optimization

15.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kotrem.pl main page is 23.6 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. 65% of websites need less resources to load. Images take 23.4 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 96.8 kB

  • Original 110.6 kB
  • After minification 85.9 kB
  • After compression 13.8 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. This page needs HTML code to be minified as it can gain 24.7 kB, which is 22% 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 96.8 kB or 88% of the original size.

Image Optimization

-33%

Potential reduce by 7.8 MB

  • Original 23.4 MB
  • After minification 15.6 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, Kotrem needs image optimization as it can save up to 7.8 MB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 149 B

  • Original 64.2 kB
  • After minification 64.2 kB
  • After compression 64.0 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

-5%

Potential reduce by 1.5 kB

  • Original 28.5 kB
  • After minification 28.4 kB
  • After compression 27.0 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. Kotrem.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 25 (19%)

Requests Now

131

After Optimization

106

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 131 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kotrem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kotrem.pl

kotrem.pl

396 ms

kotrem.pl

kotrem.pl

398 ms

www.kotrem.pl

www.kotrem.pl

325 ms

www.kotrem.pl

www.kotrem.pl

557 ms

js

js

65 ms

bootstrap-theme.min.css

bootstrap-theme.min.css

190 ms

bootstrap.min.css

bootstrap.min.css

290 ms

tpl_tpl1.css

tpl_tpl1.css

288 ms

jquery-3.1.0.min.js

jquery-3.1.0.min.js

386 ms

page_panel.css

page_panel.css

205 ms

pdf_download.css

pdf_download.css

204 ms

pdf_download_hover.css

pdf_download_hover.css

288 ms

content_panels_set_show.css

content_panels_set_show.css

292 ms

list_news.css

list_news.css

293 ms

bootstrap_grid0.css

bootstrap_grid0.css

292 ms

lightbox.css

lightbox.css

433 ms

slider.css

slider.css

433 ms

gallery.css

gallery.css

434 ms

youtube_frame.css

youtube_frame.css

433 ms

bootstrap.min.js

bootstrap.min.js

436 ms

pdf_download_hover.js

pdf_download_hover.js

435 ms

menu.js

menu.js

437 ms

lightbox.js

lightbox.js

532 ms

youtube_frame.js

youtube_frame.js

535 ms

kot%C5%82y_na_pellet_producent_s.gif

kot%C5%82y_na_pellet_producent_s.gif

210 ms

kot%C5%82y_na_pellet_producent.gif

kot%C5%82y_na_pellet_producent.gif

210 ms

facebook.png

facebook.png

208 ms

google-plus.png

google-plus.png

210 ms

youtube.png

youtube.png

283 ms

ru.png

ru.png

282 ms

en.png

en.png

282 ms

pl.png

pl.png

285 ms

telephone.png

telephone.png

282 ms

mail.png

mail.png

280 ms

location.png

location.png

376 ms

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slider-kotrem-madera-kociol-na-drewno.png

1243 ms

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slider-kotrem-madera-kociol-na-drewno-mobile-2.png

761 ms

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cwu-inox-max-slide-1200-400-2.png

957 ms

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768 ms

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972 ms

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959 ms

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869 ms

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962 ms

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970 ms

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1060 ms

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1062 ms

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1069 ms

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1081 ms

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1181 ms

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1171 ms

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1156 ms

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ekologiczne-kotly-z-dofinansowaniem.png

1074 ms

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ekologiczne-kotly-z-dofinansowaniem-s.png

1085 ms

oferta-kotly-pellet-kotrem-pompy-ciepla.png

oferta-kotly-pellet-kotrem-pompy-ciepla.png

1164 ms

kotly-na-ekogroszek.jpg

kotly-na-ekogroszek.jpg

1171 ms

dobor-kotly-kotrem-pelletowe-ekoprojekt-5-klasa.png

dobor-kotly-kotrem-pelletowe-ekoprojekt-5-klasa.png

1173 ms

piec-na-mial.jpg

piec-na-mial.jpg

1179 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

1290 ms

analytics.js

analytics.js

86 ms

kot%C5%82y-na-pellet-drzewny.jpg

kot%C5%82y-na-pellet-drzewny.jpg

1150 ms

kotly-co-producent.jpg

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1159 ms

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poczesna%20auchan.png

1275 ms

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1188 ms

slaskie-wymiana-kotlow-uchwala-antysmogowa.png

slaskie-wymiana-kotlow-uchwala-antysmogowa.png

1191 ms

lodzkie-wymiana-kotlow-uchwala-antysmogowa.png

lodzkie-wymiana-kotlow-uchwala-antysmogowa.png

1246 ms

collect

collect

15 ms

js

js

52 ms

auchan-poczesna-2021.png

auchan-poczesna-2021.png

1195 ms

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1217 ms

miniaturka.png

miniaturka.png

1220 ms

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miniaturka2.png

1222 ms

miniaturka4.png

miniaturka4.png

1273 ms

logo-nfosigw%20500.png

logo-nfosigw%20500.png

1288 ms

k%C5%82obuck-dop%C5%82aty-kotrem.png

k%C5%82obuck-dop%C5%82aty-kotrem.png

1207 ms

dotacje-kotrem-kliknij.png

dotacje-kotrem-kliknij.png

835 ms

targi-gliwice-2019-silesia-design-kotrem-5klasa-ekoprojekt.jpg

targi-gliwice-2019-silesia-design-kotrem-5klasa-ekoprojekt.jpg

1037 ms

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855 ms

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700 ms

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718 ms

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722 ms

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726 ms

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783 ms

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712 ms

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718 ms

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725 ms

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740 ms

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677 ms

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690 ms

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696 ms

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702 ms

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659 ms

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659 ms

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676 ms

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689 ms

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695 ms

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702 ms

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642 ms

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649 ms

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648 ms

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663 ms

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660 ms

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633 ms

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620 ms

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629 ms

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643 ms

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658 ms

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668 ms

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630 ms

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620 ms

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slide%20doatacje%20cz%C4%99stochowa%202019%202.png

628 ms

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targi%20poczesna%20auchan%20baner.png

647 ms

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601 ms

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kotly-z-5-klasa-emisji.png

599 ms

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599 ms

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593 ms

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ekologiczne-kotly-z-dofinansowaniem2o17i.jpg

582 ms

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ekologiczne-kotly-z-dofinansowaniem.jpg

588 ms

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piec-na-pellet-z-podajnikiemaeomt.jpg

582 ms

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piec-na-pellet-z-podajnikiem.jpg

593 ms

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586 ms

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580 ms

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584 ms

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piece-co-na-pellet.jpg

587 ms

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piec-na-pellet-z-podajnikiemqg6oj.png

582 ms

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piec-na-pellet-z-podajnikiem.png

594 ms

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ekologiczne-kotly-na-pellet8ypiy.jpg

586 ms

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ekologiczne-kotly-na-pellet.jpg

582 ms

home.png

home.png

583 ms

phone.png

phone.png

587 ms

envelope.png

envelope.png

581 ms

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producent-kotlow-na-pellet_s.png

593 ms

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585 ms

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close.png

583 ms

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loading.gif

582 ms

prev.png

prev.png

587 ms

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next.png

581 ms

Accessibility Review

kotrem.pl accessibility score

69

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

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.

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

kotrem.pl best practices score

67

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

SEO Factors

kotrem.pl SEO score

91

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kotrem.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Kotrem.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

kotrem.pl

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