WHMCS Tags domain-registration The Registrar TLD Sync feature imports domain extension (TLD) information and pricing from domain registrars that support syncing. Customers use the Client Area's Register Domain page to view your domain extension pricing, Spotlight TLDs extensions, and term information. Domain categories group domain extensions (TLDs) into customizable categories like Popular or Business in your Client Area. Additional domain fields (extended attributes) display when ordering specific domain extensions (TLDs) to capture all necessary data. After most domains expire, they enter a grace period and then a redemption grace period. Renewal during these periods may incur fees. ICANN sets the policies that govern domain registrations. If you sell or manage domains, you must follow their requirements for registration, renewals, transfers, and changes to contact information. WHOIS servers check domain availability and return related information. You must use the appropriate WHOIS servers to search for domains.