SLD

Updated: 12/29/2017 by Computer Hope

Alternatively referred to as 2LD, a SLD or second-level domain is the domain that is directly below the TLD (top-level domain). For example, with "computerhope.com," "computerhope" is the second-level domain of the ".com" domain. With a domain name like "google.co.uk," the ".co" is the second-level domain of ".uk" and "google" would be considered the third-level domain.

Domain, Network terms, Subdomain, TLD