HSTS (HTTP Strict Transport Security) tells browsers to reach a site only over HTTPS, blocking protocol downgrades and certificate click-through.
HTTP, the Hypertext Transfer Protocol, is the stateless request-response application protocol that clients and servers use to exchange web resources.
HTTP/2 is the second major version of the HTTP protocol, carrying requests as binary frames over multiplexed streams on one TCP connection.
HTTP/3 is the third major version of HTTP, carrying web requests over QUIC and UDP to avoid head-of-line blocking and speed up…
HTTPS is HTTP carried over an encrypted TLS connection, protecting web traffic against eavesdropping and tampering and authenticating the server.