# HTTP/3 peste QUIC

Layer-ul HTTP face transferuri tip-HTTP, inclusiv compresia headere-lor HTTP folosind QPACK - similar cu compresia HTTP/2 numită HPACK.

Algoritmul HPACK se bazează pe livrarea *ordonată* a fluxurilor, astfel că nu a fost posibil să fie refolosit pentru HTTP/3 fără modificări, de vreme ce QUIC oferă fluxuri care pot fi livrate în orice ordine. QPACK poate fi considerat a fi versiunea adaptă pentru QUIC a [HPACK](https://httpwg.org/specs/rfc7541.html).


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