Description
Wikipedia Reference
DNS LookupDomain name resolution to IP
Resolves domain name to IP address
Standard prerequisite for any HTTP connection
TCP HandshakeConnection establishment phase
3-way: SYN → SYN-ACK → ACK
Foundation layer before TLS can begin
TLS HandshakeCryptographic security phase
Client Hello, Server Hello, Certificate, Key Exchange
"TLS 1.3 for its cryptographic handshake"
HTTP RequestEncrypted data exchange
Encrypted GET/POST over secure tunnel
"securing HTTPS remains most publicly visible"
HTTP ResponseServer reply over secure channel
Encrypted response decrypted by client
Data flows through established TLS tunnel