Tools & Wizards About Us
opten.ch screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

opten.ch

Individualsoftware | Umbraco | eCommerce | Webdesign | CMS | Beratung | OPTEN AG

Page Load Speed

10.7 sec in total

First Response

507 ms

Resources Loaded

3.6 sec

Page Rendered

6.5 sec

opten.ch screenshot

About Website

Visit opten.ch now to see the best up-to-date OPTEN content and also check out these interesting facts you probably never knew about opten.ch

Als professionelle .NET Internetagentur für webbasierte Applikationen und Internetauftritte liegen unsere Kernkompetenzen in der Analyse, Planung und Umsetzung von komplexen Anforderungen.

Visit opten.ch

Key Findings

We analyzed Opten.ch page load time and found that the first response time was 507 ms and then it took 10.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

opten.ch performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value1,140 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

opten.ch

507 ms

www.opten.ch

1102 ms

css

198 ms

swiper.min.css

258 ms

main.css

794 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 46% of them (17 requests) were addressed to the original Opten.ch, 22% (8 requests) were made to Cdnjs.cloudflare.com and 11% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Opten.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 444.5 kB (32%)

Content Size

1.4 MB

After Optimization

958.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Opten.ch main page is 1.4 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. 65% of websites need less resources to load. Images take 908.4 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 59.1 kB

  • Original 68.3 kB
  • After minification 65.0 kB
  • After compression 9.2 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 59.1 kB or 87% of the original size.

Image Optimization

-2%

Potential reduce by 15.3 kB

  • Original 908.4 kB
  • After minification 893.2 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. OPTEN images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 11.7 kB

  • Original 17.9 kB
  • After minification 17.4 kB
  • After compression 6.2 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 11.7 kB or 65% of the original size.

CSS Optimization

-88%

Potential reduce by 358.4 kB

  • Original 408.2 kB
  • After minification 408.2 kB
  • After compression 49.8 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. Opten.ch needs all CSS files to be minified and compressed as it can save up to 358.4 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (45%)

Requests Now

29

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of OPTEN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

opten.ch

opten.ch

507 ms

www.opten.ch

www.opten.ch

1102 ms

css

css

198 ms

swiper.min.css

swiper.min.css

258 ms

main.css

main.css

794 ms

lazysizes.min.js

lazysizes.min.js

239 ms

TweenMax.min.js

TweenMax.min.js

254 ms

ScrollMagic.min.js

ScrollMagic.min.js

260 ms

animation.gsap.min.js

animation.gsap.min.js

253 ms

debug.addIndicators.min.js

debug.addIndicators.min.js

256 ms

prism-core.min.js

prism-core.min.js

275 ms

prism-autoloader.min.js

prism-autoloader.min.js

256 ms

swiper.min.js

swiper.min.js

283 ms

api.js

api.js

236 ms

mixitup.min.js

mixitup.min.js

274 ms

js

js

273 ms

mixitup-multifilter.min.js

mixitup-multifilter.min.js

622 ms

main.js

main.js

1149 ms

recaptcha__de.js

recaptcha__de.js

245 ms

gen_204

gen_204

419 ms

cookie.png

cookie.png

368 ms

opten_rocks-10.jpg

opten_rocks-10.jpg

985 ms

opten_rocks-43.jpg

opten_rocks-43.jpg

412 ms

opten_rocks-7.jpg

opten_rocks-7.jpg

418 ms

opten_rocks-53.jpg

opten_rocks-53.jpg

417 ms

handball-logo.png

handball-logo.png

549 ms

max_zeller_ag_logo.png

max_zeller_ag_logo.png

546 ms

hbl-quatrat-logo.svg

hbl-quatrat-logo.svg

544 ms

sihf_logo.png

sihf_logo.png

695 ms

hiag_logo.svg

hiag_logo.svg

683 ms

sihf-logo.svg

sihf-logo.svg

685 ms

zeller-favicon-weiss_200px.png

zeller-favicon-weiss_200px.png

813 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

313 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvC73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvC73w5aX8.ttf

328 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aX8.ttf

330 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

328 ms

JetBrainsMono-Regular.ttf

JetBrainsMono-Regular.ttf

967 ms

Accessibility Review

opten.ch accessibility score

86

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

Image elements do not have [alt] attributes

Best Practices

opten.ch best practices score

75

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

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

opten.ch SEO score

90

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

Image elements do not have [alt] attributes

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 Opten.ch 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 Opten.ch 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

opten.ch

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