Tools & Wizards About Us
grewer-haustechnik.de screenshot

Report Summary

  • 93

    Performance

    Renders faster than
    92% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

grewer-haustechnik.de

Heizung und Sanitär vom Fachmann aus Krefeld | Haustechnik

Page Load Speed

4.1 sec in total

First Response

411 ms

Resources Loaded

3.6 sec

Page Rendered

102 ms

grewer-haustechnik.de screenshot

About Website

Click here to check amazing Grewer Haustechnik content. Otherwise, check out these important facts you probably never knew about grewer-haustechnik.de

Wir sind Ihr kompetenter Partner rund um Heizung ✔ Sanitär ✔ und wir werden für Wohnungsverwalter, Industriekunden aber auch Privatpersonen tätig.

Visit grewer-haustechnik.de

Key Findings

We analyzed Grewer-haustechnik.de page load time and found that the first response time was 411 ms and then it took 3.7 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

grewer-haustechnik.de performance score

93

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

95/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

grewer-haustechnik.de

411 ms

www.grewer-haustechnik.de

1252 ms

jquery.min.js

11 ms

jquery-ui.min.js

25 ms

grewer-haustechnik.de.js

613 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 92% of them (46 requests) were addressed to the original Grewer-haustechnik.de, 4% (2 requests) were made to Ajax.googleapis.com and 4% (2 requests) were made to Tracker.webstyle.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Grewer-haustechnik.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 88.4 kB (18%)

Content Size

481.6 kB

After Optimization

393.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Grewer-haustechnik.de main page is 481.6 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. 45% of websites need less resources to load. Images take 365.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 18.4 kB

  • Original 22.4 kB
  • After minification 19.6 kB
  • After compression 4.1 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 2.9 kB, which is 13% 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 18.4 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 3.1 kB

  • Original 365.4 kB
  • After minification 362.2 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. Grewer Haustechnik images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 56.0 kB

  • Original 79.0 kB
  • After minification 73.4 kB
  • After compression 23.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 56.0 kB or 71% of the original size.

CSS Optimization

-74%

Potential reduce by 10.9 kB

  • Original 14.8 kB
  • After minification 14.8 kB
  • After compression 3.9 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. Grewer-haustechnik.de needs all CSS files to be minified and compressed as it can save up to 10.9 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (10%)

Requests Now

48

After Optimization

43

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Grewer Haustechnik. 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

grewer-haustechnik.de

grewer-haustechnik.de

411 ms

www.grewer-haustechnik.de

www.grewer-haustechnik.de

1252 ms

jquery.min.js

jquery.min.js

11 ms

jquery-ui.min.js

jquery-ui.min.js

25 ms

grewer-haustechnik.de.js

grewer-haustechnik.de.js

613 ms

site.styles.css

site.styles.css

466 ms

mobileLink.js

mobileLink.js

464 ms

tracker.js

tracker.js

321 ms

h1-grewer-haustechnik.jpg

h1-grewer-haustechnik.jpg

249 ms

facebook.png

facebook.png

251 ms

productnav-sanitaer.jpg

productnav-sanitaer.jpg

242 ms

bad_09.jpg

bad_09.jpg

246 ms

bad_10.jpg

bad_10.jpg

386 ms

bad_11.jpg

bad_11.jpg

386 ms

bad_12.jpg

bad_12.jpg

391 ms

bad_03.jpg

bad_03.jpg

394 ms

bad_04.jpg

bad_04.jpg

397 ms

bad_02.jpg

bad_02.jpg

496 ms

bad_05.jpg

bad_05.jpg

533 ms

bad_06.jpg

bad_06.jpg

533 ms

bad_07.jpg

bad_07.jpg

541 ms

bad_08.jpg

bad_08.jpg

566 ms

bad_01.jpg

bad_01.jpg

566 ms

productnav-heizung.jpg

productnav-heizung.jpg

747 ms

heizung_09.jpg

heizung_09.jpg

801 ms

heizung_03.jpg

heizung_03.jpg

795 ms

heizung_08.jpg

heizung_08.jpg

801 ms

heizung_04.jpg

heizung_04.jpg

798 ms

heizung_01.jpg

heizung_01.jpg

799 ms

heizung_02.jpg

heizung_02.jpg

897 ms

heizung_07.jpg

heizung_07.jpg

956 ms

heizung_11.jpg

heizung_11.jpg

957 ms

heizung_05.jpg

heizung_05.jpg

959 ms

heizung_06.jpg

heizung_06.jpg

957 ms

heizung_10.jpg

heizung_10.jpg

960 ms

heizung_12.jpg

heizung_12.jpg

1046 ms

productnav-elektro.jpg

productnav-elektro.jpg

1102 ms

elektro_04.jpg

elektro_04.jpg

1103 ms

elektro_06.jpg

elektro_06.jpg

1103 ms

elektro_01.jpg

elektro_01.jpg

1105 ms

elektro_11.jpg

elektro_11.jpg

1112 ms

elektro_05.jpg

elektro_05.jpg

1195 ms

elektro_03.jpg

elektro_03.jpg

1249 ms

counter.js

counter.js

178 ms

elektro_09.jpg

elektro_09.jpg

1227 ms

elektro_10.jpg

elektro_10.jpg

1020 ms

elektro_12.jpg

elektro_12.jpg

1019 ms

elektro_08.jpg

elektro_08.jpg

1026 ms

elektro_07.jpg

elektro_07.jpg

1108 ms

elektro_02.jpg

elektro_02.jpg

1022 ms

Accessibility Review

grewer-haustechnik.de accessibility score

74

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

<frame> or <iframe> elements do not have a title

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

grewer-haustechnik.de best practices score

83

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

Page has valid source maps

SEO Factors

grewer-haustechnik.de SEO score

100

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

grewer-haustechnik.de

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