Tools & Wizards About Us
lorenzen.gl screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

lorenzen.gl

Lorenzen GmbH Krefeld & Bonn - Gebäudetechnik seit 1876

Page Load Speed

9.1 sec in total

First Response

2.9 sec

Resources Loaded

5.8 sec

Page Rendered

366 ms

lorenzen.gl screenshot

About Website

Visit lorenzen.gl now to see the best up-to-date Lorenzen content and also check out these interesting facts you probably never knew about lorenzen.gl

Wärme-, Heizungs-, Sanitär-, Lüftungs- und Kältetechnik ✓ Gebäudeautomation ✓ Kundendienst ✓ Heizungsrechner ▶ mehr dazu

Visit lorenzen.gl

Key Findings

We analyzed Lorenzen.gl page load time and found that the first response time was 2.9 sec and then it took 6.1 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

lorenzen.gl performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

64/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

Network Requests Diagram

www.lorenzen.gl

2924 ms

sbi-styles.min.css

143 ms

style.css

294 ms

jquery.min.js

468 ms

jquery-migrate.min.js

318 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Lorenzen.gl and no external sources were called. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Lorenzen.gl.

Page Optimization Overview & Recommendations

Page size can be reduced by 128.6 kB (8%)

Content Size

1.7 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lorenzen.gl main page is 1.7 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. 20% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 96.0 kB

  • Original 106.9 kB
  • After minification 91.4 kB
  • After compression 11.0 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 15.6 kB, which is 15% 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 96.0 kB or 90% of the original size.

Image Optimization

-1%

Potential reduce by 19.4 kB

  • Original 1.5 MB
  • After minification 1.5 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. Lorenzen images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 6.7 kB

  • Original 56.1 kB
  • After minification 56.1 kB
  • After compression 49.4 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 6.7 kB or 12% of the original size.

CSS Optimization

-21%

Potential reduce by 6.5 kB

  • Original 30.8 kB
  • After minification 30.8 kB
  • After compression 24.3 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. Lorenzen.gl needs all CSS files to be minified and compressed as it can save up to 6.5 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (17%)

Requests Now

18

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lorenzen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.lorenzen.gl

www.lorenzen.gl

2924 ms

sbi-styles.min.css

sbi-styles.min.css

143 ms

style.css

style.css

294 ms

jquery.min.js

jquery.min.js

468 ms

jquery-migrate.min.js

jquery-migrate.min.js

318 ms

slider.css

slider.css

332 ms

images.js

images.js

327 ms

app.js

app.js

328 ms

sbi-sprite.png

sbi-sprite.png

126 ms

logo.svg

logo.svg

116 ms

ui.svg

ui.svg

112 ms

sm.svg

sm.svg

110 ms

Lorenzen_Startseite_Header-5_2000px-2000x1000-c-center.jpg

Lorenzen_Startseite_Header-5_2000px-2000x1000-c-center.jpg

664 ms

Lorenzen_Startseite_Header-Fassade_2000px-2000x1000-c-center.jpg

Lorenzen_Startseite_Header-Fassade_2000px-2000x1000-c-center.jpg

965 ms

Lorenzen_Startseite_Header-3C_2000px-2000x1000-c-center.jpg

Lorenzen_Startseite_Header-3C_2000px-2000x1000-c-center.jpg

814 ms

Lorenzen_Teaser_Projektanfrage2_1000px-1000x500-c-center.jpeg

Lorenzen_Teaser_Projektanfrage2_1000px-1000x500-c-center.jpeg

347 ms

Lorenzen_Header_Kundendienst-2_1500px-1000x500-c-center.jpg

Lorenzen_Header_Kundendienst-2_1500px-1000x500-c-center.jpg

285 ms

Lorenzen_Teaser_PV-Heizung-2_1000px-1000x500-c-center.jpg

Lorenzen_Teaser_PV-Heizung-2_1000px-1000x500-c-center.jpg

472 ms

Lorenzen_Beitrag_Image-1_2000px-2000x1000-c-center.jpg

Lorenzen_Beitrag_Image-1_2000px-2000x1000-c-center.jpg

1102 ms

Accessibility Review

lorenzen.gl accessibility score

98

Accessibility Issues

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

lorenzen.gl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

lorenzen.gl SEO score

96

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

High

Tap targets are not sized appropriately

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 Lorenzen.gl 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 Lorenzen.gl 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

lorenzen.gl

Open Graph data is detected on the main page of Lorenzen. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: