Each License may run one instance of the Software, accessible via one URL. Any attempt to circumvent this limitation is prohibited and will result in the License being revoked.
Before deploying the Software, you must register in the XenForo.com customer area the address (URL) at which You will use the License. This URL must be kept up-to-date. You may create a single additional test installation for the purpose of testing the Software. Any test installation of this kind must be password protected, and access to it must be limited to You and Your website staff.
To change domains, you must remove the existing install, change the details in your Customer Area, and re-install. You may change domains as often as you like, but only one may be active at any one time.