What is the port number for HTTPS?

HTTPS = port 443 (TCP).

HTTPS = Port 443 (TCP)

HTTPS (HTTP Secure) is encrypted web traffic using TLS/SSL.

Memory tip: 443 contains "44" - think "4-4 Secure" (sounds like "for secure").

Why it matters:

• All modern websites should use HTTPS
• Browsers show warnings for HTTP sites
• Encrypts data between client and server

Go deeper:

• HTTPS — Wikipedia overview confirming TCP port 443 and the TLS layer beneath it.
• List of TCP and UDP port numbers — the broader lookup table placing 443 among the well-known ports.