GLOSSARY TERM
What is HTTP/3?
Definition
The third major version of HTTP, built on the QUIC protocol. Reduces connection setup time (especially over flaky mobile networks) and eliminates head-of-line blocking that affects HTTP/2.
Why it Matters for AI Search
HTTP/3 is most noticeable on mobile and on lossy connections. The performance difference for typical desktop traffic is small but the mobile-network improvements directly help TTFB and LCP — both ranking signals.
Related Terms
HTTP/2CDN (Content Delivery Network)Canonical TagRanking FactorTTFB (Time to First Byte)Mobile-First Indexing
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