SSTP VPN: How It Works, Pros, Cons, and When to Use It
SSTP (Secure Socket Tunneling Protocol) is a VPN protocol developed by Microsoft that sends VPN traffic through HTTPS connections. Because it uses the same port as secure websites (TCP 443), SSTP can often connect on networks that block other VPN protocols. Although it is no longer the default choice for most VPN users, SSTP remains relevant in certain situations, particularly on Windows devices and restrictive networks. This guide explains how SSTP works, where it fits among modern VPN protocols, and when it is still worth using.






