Tools & Wizards About Us
threema.org screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

threema.org

Threema – The Secure Messenger For Individuals and Companies

Page Load Speed

6.2 sec in total

First Response

364 ms

Resources Loaded

4.9 sec

Page Rendered

893 ms

threema.org screenshot

About Website

Visit threema.org now to see the best up-to-date Threema content and also check out these interesting facts you probably never knew about threema.org

The secure instant messenger from Switzerland. GDPR-compliant chat app for individuals and companies that value security and data protection. Trusted by millions – find out more!

Visit threema.org

Key Findings

We analyzed Threema.org page load time and found that the first response time was 364 ms and then it took 5.8 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

threema.org performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value7.4 s

27/100

10%

TBT (Total Blocking Time)

Value970 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

threema.org

364 ms

www.threema.com

592 ms

threema.ch

743 ms

en

298 ms

labgrotesque.css

700 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Threema.org, 85% (50 requests) were made to Threema.ch and 12% (7 requests) were made to Static.threema.ch. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Threema.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 155.5 kB (18%)

Content Size

879.3 kB

After Optimization

723.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Threema.org main page is 879.3 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. 40% of websites need less resources to load. Images take 774.0 kB which makes up the majority of the site volume.

HTML Optimization

-100%

Potential reduce by 4.1 kB

  • Original 4.1 kB
  • After compression 8 B

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. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 4.1 kB or 100% of the original size.

Image Optimization

-17%

Potential reduce by 129.4 kB

  • Original 774.0 kB
  • After minification 644.6 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, Threema needs image optimization as it can save up to 129.4 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-22%

Potential reduce by 22.0 kB

  • Original 101.1 kB
  • After minification 101.1 kB
  • After compression 79.2 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. Threema.org needs all CSS files to be minified and compressed as it can save up to 22.0 kB or 22% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

49

After Optimization

49

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Threema. According to our analytics all requests are already optimized.

Network Requests Diagram

threema.org

threema.org

364 ms

www.threema.com

www.threema.com

592 ms

threema.ch

threema.ch

743 ms

en

en

298 ms

labgrotesque.css

labgrotesque.css

700 ms

threema_website_start.css

threema_website_start.css

379 ms

threema_website_start.js

threema_website_start.js

1006 ms

threema-icon.svg

threema-icon.svg

146 ms

logo.svg

logo.svg

147 ms

app-icon-threema.svg

app-icon-threema.svg

251 ms

threema-work-app-icon.svg

threema-work-app-icon.svg

256 ms

conversations-portrait.jpg

conversations-portrait.jpg

877 ms

threema-work-logo-daimler.svg

threema-work-logo-daimler.svg

385 ms

threema-work-logo-emirates.svg

threema-work-logo-emirates.svg

387 ms

threema-work-logo-admin-ch.svg

threema-work-logo-admin-ch.svg

756 ms

threema-work-logo-tk_elevator.svg

threema-work-logo-tk_elevator.svg

381 ms

threema-work-logo-adac.svg

threema-work-logo-adac.svg

383 ms

threema-work-logo-mercedes-benz.svg

threema-work-logo-mercedes-benz.svg

1257 ms

threema-work-logo-six.svg

threema-work-logo-six.svg

506 ms

threema-work-logo-kbc.svg

threema-work-logo-kbc.svg

509 ms

threema-work-logo-edeka.png

threema-work-logo-edeka.png

630 ms

threema-work-logo-deutsche-bundesbank.svg

threema-work-logo-deutsche-bundesbank.svg

632 ms

threema-work-logo-frankfurt.svg

threema-work-logo-frankfurt.svg

1014 ms

threema-work-logo-ch-armee.png

threema-work-logo-ch-armee.png

881 ms

threema-work-logo-b90.png

threema-work-logo-b90.png

763 ms

threema-work-logo-rwe.svg

threema-work-logo-rwe.svg

879 ms

threema-work-logo-freiburg.svg

threema-work-logo-freiburg.svg

882 ms

threema-work-logo-baden_wuerttemberg-km.png

threema-work-logo-baden_wuerttemberg-km.png

999 ms

threema-work-logo-schottel.svg

threema-work-logo-schottel.svg

1009 ms

threema-work-logo-spital-thun.svg

threema-work-logo-spital-thun.svg

1004 ms

threema-work-logo-erasmus-university-rotterdam.svg

threema-work-logo-erasmus-university-rotterdam.svg

1006 ms

group_chat-portrait.jpg

group_chat-portrait.jpg

1249 ms

icon-android.svg

icon-android.svg

1130 ms

icon-ios.svg

icon-ios.svg

1132 ms

icon-desktop.svg

icon-desktop.svg

1134 ms

icon-apple.svg

icon-apple.svg

1136 ms

icon-windows.svg

icon-windows.svg

1344 ms

icon-linux.svg

icon-linux.svg

1345 ms

device_work_overview_visual.png

device_work_overview_visual.png

1881 ms

logo_work.svg

logo_work.svg

1348 ms

logo_onprem.svg

logo_onprem.svg

1374 ms

logo_broadcast.svg

logo_broadcast.svg

1378 ms

logo_gateway.svg

logo_gateway.svg

1246 ms

LabGrotesque-Light.woff

LabGrotesque-Light.woff

501 ms

LabGrotesque-Thin.woff

LabGrotesque-Thin.woff

627 ms

LabGrotesque-Regular.woff

LabGrotesque-Regular.woff

652 ms

LabGrotesque-Medium.woff

LabGrotesque-Medium.woff

650 ms

LabGrotesque-Bold.woff

LabGrotesque-Bold.woff

651 ms

LabGrotesque-Black.woff

LabGrotesque-Black.woff

651 ms

threema-icon-negative.svg

threema-icon-negative.svg

1243 ms

icon-threema-name-color.svg

icon-threema-name-color.svg

1239 ms

icon-10m-color.svg

icon-10m-color.svg

1253 ms

icon-business-color.svg

icon-business-color.svg

1253 ms

icon-rating-color.svg

icon-rating-color.svg

1127 ms

threema_channel.svg

threema_channel.svg

1129 ms

twitter_channel.svg

twitter_channel.svg

1130 ms

mastodon_channel.svg

mastodon_channel.svg

1243 ms

logo-big.png

logo-big.png

1125 ms

twitter-icon.svg

twitter-icon.svg

1123 ms

Accessibility Review

threema.org accessibility score

82

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

[aria-hidden="true"] elements contain focusable descendents

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best Practices

threema.org best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

threema.org SEO score

86

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

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

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 Threema.org 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 Threema.org 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

threema.org

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