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What are second-level domains (SLD) and country code second level domains (ccSLD)?

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Last Updated: January 16, 2014 11:39 AM

A second-level domain (SLD) is the portion of the domain name that is located immediately to the left of the dot and domain name extension. Example 1: The SLD in is coolexample. Example 2: The SLD in is still coolexample. You define the SLD when you register a domain name.

A country code second-level domain (ccSLD) is a domain name class that many country code top-level domain (ccTLD) registries implement. The ccSLD portion of the domain name is located between the ccTLD and the SLD. Example: The ccSLD in is .co.

See What are top-level domains (TLD) and country code top-level domains (ccTLD)? for more informtion.