second-level domain

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|computing|Internet}} A [[domain]] that is immediately [[subordinate]] to a [[top-level domain]] (whose name appears after it, with a period separating the two).

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.