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Training Camp • Cybersecurity Glossary
HTTP 3, defined in RFC 9114, runs over QUIC and UDP with mandatory TLS 1.3, cutting latency and eliminating head-of-line blocking.
HTTP 3 Definition: HTTP 3, defined in RFC 9114, runs over QUIC and UDP with mandatory TLS 1.3, cutting latency and eliminating head-of-line blocking.
HTTP 3 is the third major version of the Hypertext Transfer Protocol, standardized in RFC 9114, which runs over the QUIC transport protocol on UDP instead of TCP. Because QUIC integrates TLS 1.3 directly, HTTP 3 makes encryption mandatory and reduces connection setup latency while eliminating the head-of-line blocking that affected HTTP 2 over TCP. The result is faster, more resilient, and consistently encrypted web communication.
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