Registrations are taken at the second level and also at the third level beneath various categorized second level names. A second-level registration automatically blocks the name from registration by anybody else under any of the third-level names.OverviewIn the (DNS) hierarchy, a second-level domain (SLD or 2LD) is a domain that is directly below a Second. In Austria there are two second-level domains available for the public: •.co.at intended for commercial enterprises•.or.at intended for organizations. The secon. There are several second-level domains which are no longer available. Second-level domains under.au which are no longer available include:.conf.au originally intended for conferences;.gw.au for the Aust. As a result of ICANN's generic top-level domain (gTLD) expansion, the risk of has increased significantly. For example, based on current regulations, the registration of the gTLDs.olympics o. • • • •.
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