ttfb

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|internet}} {{initialism of|en|[[time]] to [[first]] [[byte]]}}: the time that elapses between the [[client]] making an [[HTTP]] [[request]] and receiving the first byte of the [[response]].

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