Tools & Wizards About Us
stefanhelling.com screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    60% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

stefanhelling.com

Stefan Helling | AudioVisual Engineering for Design + Architecture

Page Load Speed

6.8 sec in total

First Response

1.9 sec

Resources Loaded

3.2 sec

Page Rendered

1.7 sec

stefanhelling.com screenshot

About Website

Click here to check amazing Stefan Helling content. Otherwise, check out these important facts you probably never knew about stefanhelling.com

Stefan Helling is a freelance planner and engineer specialized in interactive exhibitions and based in Berlin. He has a background in audiovisual technologies and electronics.

Visit stefanhelling.com

Key Findings

We analyzed Stefanhelling.com page load time and found that the first response time was 1.9 sec and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

stefanhelling.com performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value1,760 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.255

48/100

15%

TTI (Time to Interactive)

Value5.6 s

69/100

10%

Network Requests Diagram

stefanhelling.com

1920 ms

dbc996d7c3639938dbd275ad8f70c6a5.css

242 ms

fc3fae64bbae504f080ba37c5ae8c52c3b9c8fe4-01-stefan-helling-iart-hyundai-olympic-pavilion-media-facade1x.jpeg

476 ms

7f66f2727a5274abb2570a3696a3f5bcc5eaa9dd-01-stefan-helling-thegreeneyl-5670-mann-hummel-filter-museum-led-wall1x.jpeg

595 ms

57571d39bf1a6e0ae3a93b971ed53774c0330802-01-stefan-helling-thegreeneyl-universal-music-berlin-led-cube1x.jpeg

508 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 Stefanhelling.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Stefanhelling.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.5 kB (3%)

Content Size

1.0 MB

After Optimization

980.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stefanhelling.com main page is 1.0 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 887.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 29.3 kB

  • Original 35.9 kB
  • After minification 28.5 kB
  • After compression 6.6 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 7.4 kB, which is 21% 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 29.3 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 1.1 kB

  • Original 887.8 kB
  • After minification 886.7 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. Stefan Helling images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 73.8 kB
  • After minification 73.8 kB
  • After compression 73.8 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

-1%

Potential reduce by 132 B

  • Original 13.7 kB
  • After minification 13.7 kB
  • After compression 13.6 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. Stefanhelling.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stefan Helling. According to our analytics all requests are already optimized.

Network Requests Diagram

stefanhelling.com

stefanhelling.com

1920 ms

dbc996d7c3639938dbd275ad8f70c6a5.css

dbc996d7c3639938dbd275ad8f70c6a5.css

242 ms

fc3fae64bbae504f080ba37c5ae8c52c3b9c8fe4-01-stefan-helling-iart-hyundai-olympic-pavilion-media-facade1x.jpeg

fc3fae64bbae504f080ba37c5ae8c52c3b9c8fe4-01-stefan-helling-iart-hyundai-olympic-pavilion-media-facade1x.jpeg

476 ms

7f66f2727a5274abb2570a3696a3f5bcc5eaa9dd-01-stefan-helling-thegreeneyl-5670-mann-hummel-filter-museum-led-wall1x.jpeg

7f66f2727a5274abb2570a3696a3f5bcc5eaa9dd-01-stefan-helling-thegreeneyl-5670-mann-hummel-filter-museum-led-wall1x.jpeg

595 ms

57571d39bf1a6e0ae3a93b971ed53774c0330802-01-stefan-helling-thegreeneyl-universal-music-berlin-led-cube1x.jpeg

57571d39bf1a6e0ae3a93b971ed53774c0330802-01-stefan-helling-thegreeneyl-universal-music-berlin-led-cube1x.jpeg

508 ms

432a740f3e635139d0de5c6aa03565485b023cd8-01-stefan-helling-thegreeneyl-unesco-world-natural-heritage-wadden-sea-visitor-center-building1x.jpeg

432a740f3e635139d0de5c6aa03565485b023cd8-01-stefan-helling-thegreeneyl-unesco-world-natural-heritage-wadden-sea-visitor-center-building1x.jpeg

656 ms

637e88bd8ee2a0136f427461975f0c6ecbda63bf-01-stefan-helling-thegreeneyl-zeiss-museum-of-optics-overview1x.jpeg

637e88bd8ee2a0136f427461975f0c6ecbda63bf-01-stefan-helling-thegreeneyl-zeiss-museum-of-optics-overview1x.jpeg

473 ms

c9210460000a4c0b0a10c2b5b0b6997ee59db540-01-artcom-living-cartography-interactive-map-vatnajoekull-visitors1x.jpeg

c9210460000a4c0b0a10c2b5b0b6997ee59db540-01-artcom-living-cartography-interactive-map-vatnajoekull-visitors1x.jpeg

614 ms

e7d607f22f82c7ef46129f1c28ed1ed4e66533fc-01-stefan-helling-artcom-hansol-paper-museum-ink-drops-origin-sheets-breeze1x.jpeg

e7d607f22f82c7ef46129f1c28ed1ed4e66533fc-01-stefan-helling-artcom-hansol-paper-museum-ink-drops-origin-sheets-breeze1x.jpeg

589 ms

d0cd48cfe128b0fc727df3ca059eb25dd56a0354-01-stefan-helling-artcom-statistics-strip-dhmd-world-map1x.jpeg

d0cd48cfe128b0fc727df3ca059eb25dd56a0354-01-stefan-helling-artcom-statistics-strip-dhmd-world-map1x.jpeg

605 ms

291c0b6cd896c5bccab295e3d95e18d87f81e068-01-stefan-helling-artcom-aliens-exhibition-china-visitors1x.jpeg

291c0b6cd896c5bccab295e3d95e18d87f81e068-01-stefan-helling-artcom-aliens-exhibition-china-visitors1x.jpeg

639 ms

29bf55c3702805c1189d777c1beb0bcabf6bb22e-01-stefan-helling-artcom-60-years-works-multitouch-table1x.jpeg

29bf55c3702805c1189d777c1beb0bcabf6bb22e-01-stefan-helling-artcom-60-years-works-multitouch-table1x.jpeg

731 ms

1842109170d7589f7308c2f46e91580b3675d732-01-stefan-helling-triad-loopoly-interactive-4player-game-exhibit-rendering1x.jpeg

1842109170d7589f7308c2f46e91580b3675d732-01-stefan-helling-triad-loopoly-interactive-4player-game-exhibit-rendering1x.jpeg

711 ms

d7cf37f42a856f737218aa7764d9ea406bf8f959-01-stefan-helling-triad-villery-boch-260-years-event-projection-performance1x.jpeg

d7cf37f42a856f737218aa7764d9ea406bf8f959-01-stefan-helling-triad-villery-boch-260-years-event-projection-performance1x.jpeg

748 ms

41f9fda2f1b5faf7346ab453b57d2a2c.js

41f9fda2f1b5faf7346ab453b57d2a2c.js

848 ms

acc0fdae8bd38b57cc2c7c44893869bcc730902e-01-stefan-helling-triad-z-experience-showroom-stefan-helling-triad-zurich1x.jpeg

acc0fdae8bd38b57cc2c7c44893869bcc730902e-01-stefan-helling-triad-z-experience-showroom-stefan-helling-triad-zurich1x.jpeg

812 ms

96a27610da237d66b34de9f93c83a489c4c19387-01-stefan-helling-triad-kadewe-myth-exhibition-berlin-suspended-picture-frames1x.jpeg

96a27610da237d66b34de9f93c83a489c4c19387-01-stefan-helling-triad-kadewe-myth-exhibition-berlin-suspended-picture-frames1x.jpeg

794 ms

7742d92ef36cf002233b93b4daf8336d513bbc1d-01-stefan-helling-screensize-me-logo-min1x.png

7742d92ef36cf002233b93b4daf8336d513bbc1d-01-stefan-helling-screensize-me-logo-min1x.png

815 ms

shfolio-icons.woff

shfolio-icons.woff

566 ms

Accessibility Review

stefanhelling.com accessibility score

59

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.

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

stefanhelling.com 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

SEO Factors

stefanhelling.com 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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stefanhelling.com 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 Stefanhelling.com 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

stefanhelling.com

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