päädomaini

Päädomaini, often translated as "main domain" or "root domain," refers to the primary part of a fully qualified domain name (FQDN). In the hierarchical structure of the Domain Name System (DNS), the päädomaini sits at the top level of a specific domain name. For example, in the FQDN "www.example.com", "com" is the top-level domain (TLD), and "example.com" is considered the päädomaini. It is the unique identifier that distinguishes one domain from another at a specific level within the DNS hierarchy. Registration of a päädomaini, such as "example.com," typically involves obtaining it through a domain registrar. This registration grants the registrant control over the domain and the ability to create subdomains under it, like "www" or "mail". The päädomaini is crucial for website addressing, email delivery, and establishing online identity. It forms the fundamental address that users and systems use to locate resources on the internet. Without a päädomaini, a specific domain name would not have a unique identity within the global DNS infrastructure.