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HTTP over TLS with certificate-based authentication.

Definition

HTTPS is HTTP layered over TLS, providing confidentiality and integrity for HTTP traffic and server authentication via X.509 certificates.

In plain English HTTP over TLS with certificate-based authentication.

Why this matters

Why it matters: It mitigates MITM attacks and protects session cookies and credentials in transit.

Example

Example: TLS 1.3 handshake + validated certificate chain to the origin.