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acoustical-systems.de screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

acoustical-systems.de

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Page Load Speed

3.6 sec in total

First Response

633 ms

Resources Loaded

2.7 sec

Page Rendered

205 ms

acoustical-systems.de screenshot

About Website

Welcome to acoustical-systems.de homepage info - get ready to check Acoustical Systems best content right away, or after learning these important things about acoustical-systems.de

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Key Findings

We analyzed Acoustical-systems.de page load time and found that the first response time was 633 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

acoustical-systems.de performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

11/100

25%

SI (Speed Index)

Value6.2 s

43/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.263

47/100

15%

TTI (Time to Interactive)

Value4.6 s

82/100

10%

Network Requests Diagram

www.acoustical-systems.de

633 ms

style.css

527 ms

theming.css

124 ms

web.css

539 ms

common,counter,shoppingbasket

537 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 20% of them (4 requests) were addressed to the original Acoustical-systems.de, 70% (14 requests) were made to Cdn.website-start.de and 10% (2 requests) were made to 102.sb.mywebsite-editor.com. The less responsive or slowest element that took the longest time to load (965 ms) relates to the external source Cdn.website-start.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 88.0 kB (18%)

Content Size

482.7 kB

After Optimization

394.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Acoustical-systems.de main page is 482.7 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. 20% of websites need less resources to load. Images take 411.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 21.5 kB

  • Original 26.7 kB
  • After minification 24.5 kB
  • After compression 5.2 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 21.5 kB or 80% of the original size.

Image Optimization

-11%

Potential reduce by 45.9 kB

  • Original 411.1 kB
  • After minification 365.2 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. Obviously, Acoustical Systems needs image optimization as it can save up to 45.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-49%

Potential reduce by 18.9 kB

  • Original 38.7 kB
  • After minification 38.7 kB
  • After compression 19.7 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 18.9 kB or 49% of the original size.

CSS Optimization

-27%

Potential reduce by 1.7 kB

  • Original 6.2 kB
  • After minification 6.2 kB
  • After compression 4.5 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. Acoustical-systems.de needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (63%)

Requests Now

19

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Acoustical Systems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.acoustical-systems.de

www.acoustical-systems.de

633 ms

style.css

style.css

527 ms

theming.css

theming.css

124 ms

web.css

web.css

539 ms

common,counter,shoppingbasket

common,counter,shoppingbasket

537 ms

mobilenavigation.css

mobilenavigation.css

539 ms

logstate2-css.php

logstate2-css.php

479 ms

logstate-js.php

logstate-js.php

497 ms

web.js

web.js

965 ms

web.bundle.js

web.bundle.js

549 ms

mobilenavigation.js

mobilenavigation.js

628 ms

common,counter,shoppingbasket

common,counter,shoppingbasket

836 ms

855 ms

pfcsupport.js

pfcsupport.js

641 ms

background.jpeg

background.jpeg

465 ms

logo.png

logo.png

797 ms

00new_counter01a.png

00new_counter01a.png

104 ms

printer.gif

printer.gif

100 ms

logo.gif

logo.gif

105 ms

print.css

print.css

104 ms

Accessibility Review

acoustical-systems.de accessibility score

78

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

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

acoustical-systems.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

Page has valid source maps

SEO Factors

acoustical-systems.de SEO score

81

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

High

robots.txt is not valid

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

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Acoustical-systems.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed German language. Our system also found out that Acoustical-systems.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

acoustical-systems.de

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