Tools & Wizards About Us
top-heizungen.de screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

top-heizungen.de

Rhein Sani GmbH - Your specialist for heating and plumbing!

Page Load Speed

2.5 sec in total

First Response

107 ms

Resources Loaded

1.9 sec

Page Rendered

472 ms

top-heizungen.de screenshot

About Website

Visit top-heizungen.de now to see the best up-to-date Top Heizungen content and also check out these interesting facts you probably never knew about top-heizungen.de

We are a medium-sized company in the middle of Bonn's Beuel district and have been offering a comprehensive service in the area of heating and plumbing for years with our know-how. Would you like...

Visit top-heizungen.de

Key Findings

We analyzed Top-heizungen.de page load time and found that the first response time was 107 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

top-heizungen.de performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value6.5 s

38/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.844

4/100

15%

TTI (Time to Interactive)

Value15.5 s

7/100

10%

Network Requests Diagram

top-heizungen.de

107 ms

994 ms

theme-93289c339.css

35 ms

bottom-d40b4f338.js

80 ms

klaviyo.js

232 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Top-heizungen.de, 83% (35 requests) were made to Markt-bau.de and 2% (1 request) were made to Static.klaviyo.com. The less responsive or slowest element that took the longest time to load (994 ms) relates to the external source Markt-bau.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 14.4 kB (2%)

Content Size

916.3 kB

After Optimization

901.9 kB

  • Images
  • JavaScript

In fact, the total size of Top-heizungen.de main page is 916.3 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. 65% of websites need less resources to load. Images take 696.1 kB which makes up the majority of the site volume.

HTML Optimization

-0%

Potential reduce by -8 B

  • Original 0 B

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 web page is already compressed.

Image Optimization

-2%

Potential reduce by 13.2 kB

  • Original 696.1 kB
  • After minification 682.9 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. Top Heizungen images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.3 kB

  • Original 220.2 kB
  • After minification 220.2 kB
  • After compression 219.0 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.

Requests Breakdown

Number of requests can be reduced by 5 (14%)

Requests Now

36

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Top Heizungen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

top-heizungen.de

top-heizungen.de

107 ms

994 ms

theme-93289c339.css

theme-93289c339.css

35 ms

bottom-d40b4f338.js

bottom-d40b4f338.js

80 ms

klaviyo.js

klaviyo.js

232 ms

api.js

api.js

83 ms

gtm.js

gtm.js

150 ms

fbevents.js

fbevents.js

68 ms

newsletter-banner.jpg

newsletter-banner.jpg

78 ms

markt-bau-logo-1613057475.jpg

markt-bau-logo-1613057475.jpg

28 ms

2a567af39ccc8d248910e813e641b226df391a5d_keramik.jpg

2a567af39ccc8d248910e813e641b226df391a5d_keramik.jpg

30 ms

049e78a4887a11cc14f3c193e39d10a06dcf2a3f_keramik-handy.jpg

049e78a4887a11cc14f3c193e39d10a06dcf2a3f_keramik-handy.jpg

60 ms

034-heizung.png

034-heizung.png

31 ms

042-shower-1.png

042-shower-1.png

34 ms

035-toilet.png

035-toilet.png

33 ms

060-basin.png

060-basin.png

60 ms

036-bathtub.png

036-bathtub.png

60 ms

037-sink.png

037-sink.png

63 ms

038-toilet-1.png

038-toilet-1.png

62 ms

039-tap.png

039-tap.png

63 ms

20d95e7c95b64c8299251aaaf71c1b04.jpg

20d95e7c95b64c8299251aaaf71c1b04.jpg

64 ms

blank.jpg

blank.jpg

66 ms

parcel.svg

parcel.svg

63 ms

return.svg

return.svg

65 ms

support.svg

support.svg

68 ms

creditcard.svg

creditcard.svg

67 ms

14-small_default.jpg

14-small_default.jpg

110 ms

17-small_default.jpg

17-small_default.jpg

110 ms

23-small_default.jpg

23-small_default.jpg

111 ms

10-small_default.jpg

10-small_default.jpg

110 ms

21-small_default.jpg

21-small_default.jpg

111 ms

18-small_default.jpg

18-small_default.jpg

111 ms

15-small_default.jpg

15-small_default.jpg

112 ms

27-small_default.jpg

27-small_default.jpg

112 ms

11-small_default.jpg

11-small_default.jpg

113 ms

33-small_default.jpg

33-small_default.jpg

113 ms

e02e9d6ff5547f7e9962.woff

e02e9d6ff5547f7e9962.woff

113 ms

73288d91c325e82a5b92.woff

73288d91c325e82a5b92.woff

210 ms

recaptcha__de.js

recaptcha__de.js

52 ms

776adef788e7bdb9e960.svg

776adef788e7bdb9e960.svg

13 ms

9daa433b8c69db17597e.woff

9daa433b8c69db17597e.woff

111 ms

f2a0933406f783065152.woff

f2a0933406f783065152.woff

121 ms

Accessibility Review

top-heizungen.de accessibility score

82

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

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.

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

top-heizungen.de best practices score

83

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

top-heizungen.de SEO score

90

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

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Top-heizungen.de can be misinterpreted by Google and other search engines. Our service has detected that English 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 Top-heizungen.de main page’s claimed encoding is . 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

top-heizungen.de

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