HTTP vs HTTPS
What changes when a site moves from HTTP to HTTPS: what TLS encrypts and what it does not, how certificates prove a site's identity, the handshake in brief, HSTS and mixed content, and how to switch a site over.
CodexBash, , 4 min read
HTTP is the language browsers and servers use to ask for and send web pages. HTTPS is the same language sent through an encrypted, authenticated tunnel. The difference is one letter in the address bar, and it decides whether anyone between you and a website can read or change what you send. Today every site should use HTTPS, and browsers mark plain HTTP pages as not secure. This article explains what that S actually does.
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