beginnerGeneral
Domain Extension
The suffix at the end of a domain name — another word for TLD (e.g., .com, .org, .io).
A domain extension is another term for a top-level domain (TLD) — the suffix at the end of a domain name such as .com, .org, .net, .io, or .shop. The term "extension" is more commonly used in consumer-facing contexts, while "TLD" is the technical term. In the domain investing world, .com is the dominant and most valuable extension, though specific niches favor other extensions like .io for tech and .co for startups.