Tools & Wizards About Us
coolheating.eu screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

coolheating.eu

Home - CoolHeating

Page Load Speed

4.7 sec in total

First Response

325 ms

Resources Loaded

3.4 sec

Page Rendered

1 sec

coolheating.eu screenshot

About Website

Click here to check amazing Cool Heating content. Otherwise, check out these important facts you probably never knew about coolheating.eu

The CollHeating project promotes the implementation of small modular renewable heating and cooling grids for communities in South-Eastern Europe.

Visit coolheating.eu

Key Findings

We analyzed Coolheating.eu page load time and found that the first response time was 325 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

coolheating.eu performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value7.6 s

25/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.621

10/100

15%

TTI (Time to Interactive)

Value8.4 s

38/100

10%

Network Requests Diagram

coolheating.eu

325 ms

www.coolheating.eu

532 ms

content.css@4ee229ae568c8dffb7ffc30c79148c07.css

105 ms

menu-8f44cfdbb3427ec648f7db9a19e057e8.css

208 ms

menu-responsive-8f44cfdbb3427ec648f7db9a19e057e8.css

311 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 97% of them (92 requests) were addressed to the original Coolheating.eu, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Coolheating.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 452.8 kB (3%)

Content Size

15.1 MB

After Optimization

14.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coolheating.eu main page is 15.1 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. 70% of websites need less resources to load. Images take 14.9 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 72.1 kB

  • Original 80.0 kB
  • After minification 59.4 kB
  • After compression 7.9 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 20.6 kB, which is 26% 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 72.1 kB or 90% of the original size.

Image Optimization

-2%

Potential reduce by 347.1 kB

  • Original 14.9 MB
  • After minification 14.6 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. Cool Heating images are well optimized though.

JavaScript Optimization

-35%

Potential reduce by 33.1 kB

  • Original 93.5 kB
  • After minification 93.5 kB
  • After compression 60.4 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 33.1 kB or 35% of the original size.

CSS Optimization

-1%

Potential reduce by 591 B

  • Original 47.1 kB
  • After minification 47.1 kB
  • After compression 46.5 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. Coolheating.eu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (20%)

Requests Now

83

After Optimization

66

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cool Heating. 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 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

coolheating.eu

coolheating.eu

325 ms

www.coolheating.eu

www.coolheating.eu

532 ms

content.css@4ee229ae568c8dffb7ffc30c79148c07.css

content.css@4ee229ae568c8dffb7ffc30c79148c07.css

105 ms

menu-8f44cfdbb3427ec648f7db9a19e057e8.css

menu-8f44cfdbb3427ec648f7db9a19e057e8.css

208 ms

menu-responsive-8f44cfdbb3427ec648f7db9a19e057e8.css

menu-responsive-8f44cfdbb3427ec648f7db9a19e057e8.css

311 ms

grid-responsive.css

grid-responsive.css

311 ms

bootstrap.css

bootstrap.css

314 ms

master-2109d40ae1cd571f9338e454214cf39b.css

master-2109d40ae1cd571f9338e454214cf39b.css

416 ms

mediaqueries.css

mediaqueries.css

312 ms

rt_afterburner2-custom.css

rt_afterburner2-custom.css

311 ms

template.css@4ee229ae568c8dffb7ffc30c79148c07.css

template.css@4ee229ae568c8dffb7ffc30c79148c07.css

413 ms

wk-styles-f328f0cb.css

wk-styles-f328f0cb.css

519 ms

jquery.min.js@4ee229ae568c8dffb7ffc30c79148c07

jquery.min.js@4ee229ae568c8dffb7ffc30c79148c07

619 ms

jquery-noconflict.js@4ee229ae568c8dffb7ffc30c79148c07

jquery-noconflict.js@4ee229ae568c8dffb7ffc30c79148c07

414 ms

jquery-migrate.min.js@4ee229ae568c8dffb7ffc30c79148c07

jquery-migrate.min.js@4ee229ae568c8dffb7ffc30c79148c07

419 ms

caption.js@4ee229ae568c8dffb7ffc30c79148c07

caption.js@4ee229ae568c8dffb7ffc30c79148c07

515 ms

mootools-core.js@4ee229ae568c8dffb7ffc30c79148c07

mootools-core.js@4ee229ae568c8dffb7ffc30c79148c07

722 ms

core.js@4ee229ae568c8dffb7ffc30c79148c07

core.js@4ee229ae568c8dffb7ffc30c79148c07

518 ms

mootools-more.js@4ee229ae568c8dffb7ffc30c79148c07

mootools-more.js@4ee229ae568c8dffb7ffc30c79148c07

828 ms

browser-engines.js

browser-engines.js

628 ms

rokmediaqueries.js

rokmediaqueries.js

629 ms

rokmediaqueries.js

rokmediaqueries.js

629 ms

responsive.js

responsive.js

722 ms

uikit2-dd4845ed.js

uikit2-dd4845ed.js

847 ms

wk-scripts-13ba1fab.js

wk-scripts-13ba1fab.js

733 ms

custom.css

custom.css

732 ms

email-decode.min.js

email-decode.min.js

823 ms

analytics.js

analytics.js

155 ms

CoolHeating_Logo.png

CoolHeating_Logo.png

184 ms

slide_01.jpg

slide_01.jpg

389 ms

slide_02.jpg

slide_02.jpg

286 ms

slide_03.jpg

slide_03.jpg

491 ms

slide_04.jpg

slide_04.jpg

387 ms

2016-09-23-11.27.47.jpg

2016-09-23-11.27.47.jpg

701 ms

20180620_232623.jpg

20180620_232623.jpg

287 ms

20180621_135409.jpg

20180621_135409.jpg

389 ms

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391 ms

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20181128_021_H2020projects.jpg

492 ms

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20181128_023_H2020projects.jpg

493 ms

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20181128_035_H2020projects.jpg

493 ms

20181128_045_H2020projects.jpg

20181128_045_H2020projects.jpg

495 ms

20181128_047_H2020projects.jpg

20181128_047_H2020projects.jpg

594 ms

20181128_056_H2020projects.jpg

20181128_056_H2020projects.jpg

596 ms

20181128_084_H2020projects.jpg

20181128_084_H2020projects.jpg

596 ms

20181128_171_H2020projects.jpg

20181128_171_H2020projects.jpg

596 ms

IMG_0101.JPG

IMG_0101.JPG

598 ms

IMG_0129.JPG

IMG_0129.JPG

696 ms

IMG_0134.JPG

IMG_0134.JPG

700 ms

IMG_0139.JPG

IMG_0139.JPG

704 ms

IMG_0194.JPG

IMG_0194.JPG

704 ms

IMG_0213.JPG

IMG_0213.JPG

705 ms

IMG_0310.JPG

IMG_0310.JPG

800 ms

IMG_0314.JPG

IMG_0314.JPG

804 ms

IMG_0350.JPG

IMG_0350.JPG

805 ms

IMG_0351.JPG

IMG_0351.JPG

803 ms

IMG_1705.JPG

IMG_1705.JPG

905 ms

IMG_1706.JPG

IMG_1706.JPG

804 ms

IMG_1729.JPG

IMG_1729.JPG

902 ms

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906 ms

IMG_1843.JPG

IMG_1843.JPG

907 ms

IMG_1852.JPG

IMG_1852.JPG

908 ms

IMG_1895.JPG

IMG_1895.JPG

908 ms

IMG_2044.JPG

IMG_2044.JPG

1109 ms

IMG_4966.JPG

IMG_4966.JPG

932 ms

collect

collect

12 ms

js

js

68 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

931 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

728 ms

IMG_4968.JPG

IMG_4968.JPG

725 ms

IMG_5001.JPG

IMG_5001.JPG

634 ms

IMG_5041.JPG

IMG_5041.JPG

725 ms

IMG_5045.JPG

IMG_5045.JPG

735 ms

IMG_6112.JPG

IMG_6112.JPG

731 ms

IMG_6166.JPG

IMG_6166.JPG

634 ms

IMG_6201.JPG

IMG_6201.JPG

723 ms

IMG_6246.JPG

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724 ms

IMG_7782.JPG

IMG_7782.JPG

1137 ms

IMG_7833.JPG

IMG_7833.JPG

832 ms

Map.jpg

Map.jpg

731 ms

Unbenannt.jpg

Unbenannt.jpg

624 ms

coolheating_01.jpg

coolheating_01.jpg

723 ms

coolheating_02.jpg

coolheating_02.jpg

724 ms

coolheating_03.jpg

coolheating_03.jpg

827 ms

coolheating_04.jpg

coolheating_04.jpg

727 ms

coolheating_05.jpg

coolheating_05.jpg

723 ms

coolheating_06.jpg

coolheating_06.jpg

725 ms

coolheating_07.jpg

coolheating_07.jpg

729 ms

en.gif

en.gif

824 ms

bs_ba.gif

bs_ba.gif

824 ms

hr_hr.gif

hr_hr.gif

730 ms

sr_yu.gif

sr_yu.gif

727 ms

mk_mk.gif

mk_mk.gif

732 ms

sl.gif

sl.gif

828 ms

wip.jpg

wip.jpg

829 ms

eu.gif

eu.gif

730 ms

Accessibility Review

coolheating.eu accessibility score

94

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.

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

Links do not have a discernible name

Best Practices

coolheating.eu 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

Browser errors were logged to the console

SEO Factors

coolheating.eu SEO score

90

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

Document doesn't have a valid hreflang

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coolheating.eu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Coolheating.eu 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

coolheating.eu

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