For technical questions, please call +49 (0) 551 99950 – 720, or e-mail:

System requirements:

The HTS online portal requires a web browser in which JavaScript is enabled. The system works with the following browsers: Firefox version 18 and above, Chrome version 23 and above, Internet Explorer version 9 and above and Safari (Mac OS) version 5 and above. Testing is possible on any operating system with a supported web browser, including Windows, Mac and Linux. Other combinations of browser and operating systems may work, but are not supported.

HTS 5 supports testing on tablet computers. The following are required: minimum screen resolution of 980x600 pixels, Safari browser version 4 or above on Apple iPad, or version 4.2 or above of Chrome on Android. The exception are tests that require a keyboard, which cannot be carried out on tablets.