The RcodeZero DNS test system can be used for free to test the webinterface and to try out features like the REST-API. There is no active Anycast service running on our test system and there are no service level agreements available. While we strive to keep the test system available all the time, there may be outages due to deployment of new software revisions or other operational reasons. The RcodeZero DNS test system may use newer software versions to beta-test new features. The use of the test system can be revoked by us at any time.