Checking accessibility Terms of Use

  • Last modified on: 03.02.2023
  • Approved by: Ulf Busch
  • Responsible for content: Rainer Jantscher
  • Editing and design: IT Communications & Marketing

1. Purpose

The Zentraler Informatikdienst (ZID) provides employees of the University of Vienna who are responsible for web contents with the Checking Accessibility service. The service automatically checks a website’s accessibility.

2. Scope of application

These Terms of Use regulate the form in which the ZID provides the Checking Accessibility service as well as the framework conditions of use by the employees of the University of Vienna. These Terms of Use only apply to the Checking Accessibility service.

3. Service description

The Checking Accessibility service allows members of the University of Vienna who are responsible for websites to automatically check website accessibility. The user may, for example, run a check of individual pages or an entire web presence and they receive related reports.

The Checking Accessibility service is based on the cloud service axe Monitor, which is provided by the Netherlands-based company Deque Systems Europe B.V. The service is run on Amazon Web Services systems in Europe.

4. Scope

The Checking Accessibility service can automatically check those websites (domains) for accessibility that the University of Vienna owns.1

5. Permissible use and data protection

It is not permissible to use the Checking Accessibility service for private or commercial purposes. Otherwise the Code of Conduct of the University of Vienna and the general Data Protection Declaration of the University of Vienna apply. The user is obliged to comply with the applicable legal regulations.

If a user is using the service for impermissible purposes, the ZID reserves the right to revoke the permission and invoice the user for any costs incurred.

6. Deleting users

Users are deleted at their request. As soon as the u:account expires, the user does no longer have the permission to use the Checking Accessibility service.

1 A domain is a worldwide unique name for a website that is used only once. It consists of several parts which are separated by a dot:

  • Third-level domain (subdomain), e.g. weather, sport
  • Second-level domain (domain name), e.g. orf
  • Top-level domain (domain ending), e.g. com, at

For example:,, are the same domain and are not the same domain

The owner of a domain can be identified with internet tools (such as WHOIS).

From the contract with Deque Systems Europe B.V.: “Domain” designates an internet domain, i.e. all addressable URLs having the same letters and numbers left to the top-level domain’s dot and after each dot preceding the dot next to the top-level domain owned by the University of Vienna and whose ownership can be checked by means of internet tools (such as WHOIS). For example, (a) “” and “” are separate domains while (b) “” and “” are part of the same domain.