Tools & Wizards About Us
black-box-music.de screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

black-box-music.de

Black Box Music - BBM | Veranstaltungstechnik aus Berlin

Page Load Speed

8.9 sec in total

First Response

258 ms

Resources Loaded

2 sec

Page Rendered

6.7 sec

black-box-music.de screenshot

About Website

Visit black-box-music.de now to see the best up-to-date Black Box Music content for Germany and also check out these interesting facts you probably never knew about black-box-music.de

Seit 1992 ist Black Box Music im Bereich Veranstaltungstechnik tätig. Komplettlösungen für Tournee- und Konzertveranstaltungen, Theaterproduktionen, Corporate

Visit black-box-music.de

Key Findings

We analyzed Black-box-music.de page load time and found that the first response time was 258 ms and then it took 8.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

black-box-music.de performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value1,010 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value10.1 s

26/100

10%

Network Requests Diagram

black-box-music.de

258 ms

bbmclair.com

143 ms

www.bbmclair.com

980 ms

clair-bbm.webflow.ea08b5e49.min.css

68 ms

webfont.js

54 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Black-box-music.de, 60% (27 requests) were made to Cdn.prod.website-files.com and 11% (5 requests) were made to Uploads-ssl.webflow.com. The less responsive or slowest element that took the longest time to load (980 ms) relates to the external source Bbmclair.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 988.3 kB (6%)

Content Size

16.8 MB

After Optimization

15.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Black-box-music.de main page is 16.8 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. 50% of websites need less resources to load. Images take 16.5 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 59.1 kB

  • Original 70.6 kB
  • After minification 69.7 kB
  • After compression 11.5 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 59.1 kB or 84% of the original size.

Image Optimization

-6%

Potential reduce by 928.6 kB

  • Original 16.5 MB
  • After minification 15.6 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. Black Box Music images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 665 B

  • Original 128.6 kB
  • After minification 128.6 kB
  • After compression 127.9 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.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 38.9 kB
  • After minification 38.9 kB
  • After compression 38.9 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. Black-box-music.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (15%)

Requests Now

34

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Box Music. 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

black-box-music.de

black-box-music.de

258 ms

bbmclair.com

bbmclair.com

143 ms

www.bbmclair.com

www.bbmclair.com

980 ms

clair-bbm.webflow.ea08b5e49.min.css

clair-bbm.webflow.ea08b5e49.min.css

68 ms

webfont.js

webfont.js

54 ms

swiper-bundle.min.css

swiper-bundle.min.css

62 ms

swiper-bundle.min.js

swiper-bundle.min.js

86 ms

fs-cc.js

fs-cc.js

85 ms

platform.js

platform.js

83 ms

jquery-3.5.1.min.dc5e7f18c8.js

jquery-3.5.1.min.dc5e7f18c8.js

53 ms

webflow.375b5018e.js

webflow.375b5018e.js

107 ms

css

css

46 ms

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96 ms

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645b9ae9a4ee7f53893b8d4b_lp.svg

78 ms

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105 ms

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106 ms

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127 ms

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132 ms

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120 ms

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145 ms

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155 ms

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423 ms

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407 ms

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321 ms

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390 ms

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155 ms

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248 ms

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220 ms

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395 ms

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261 ms

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651b227d03633ac4503709a2_CAPTURED_LIVE_Schrift_white.png

368 ms

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338 ms

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412 ms

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648352913f96c3311fa18e9d_BBM-CLAIR-8.jpg

384 ms

645b9ae9a4ee7f3e783b8d58_BLACK%20MOUNTAIN.png

645b9ae9a4ee7f3e783b8d58_BLACK%20MOUNTAIN.png

404 ms

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648345a60f7242a23d26c5f3_Roboto-Regular.ttf

134 ms

648345a60f7242a23d26c5f6_Roboto-Medium.ttf

648345a60f7242a23d26c5f6_Roboto-Medium.ttf

147 ms

648345a60f7242a23d26c5f5_Roboto-Light.ttf

648345a60f7242a23d26c5f5_Roboto-Light.ttf

179 ms

648345a60f7242a23d26c5ee_Roboto-Bold.ttf

648345a60f7242a23d26c5ee_Roboto-Bold.ttf

202 ms

SlGWmQWMvZQIdix7AFxXmMh3eDs1Yg.ttf

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56 ms

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70 ms

648345a60f7242a23d26c5e7_icomoon%20(1).ttf

648345a60f7242a23d26c5e7_icomoon%20(1).ttf

89 ms

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0 ms

Accessibility Review

black-box-music.de accessibility score

88

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

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

black-box-music.de best practices score

75

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

black-box-music.de SEO score

88

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

Links do not have descriptive text

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 Black-box-music.de 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 Black-box-music.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

black-box-music.de

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