#7unit 1introduction to e commerce
Internet protocols
The communication rules that run the internet.
Protocols used in a single online shopping session
When you visit https://www.example.com and order an item, HTTPS (HTTP over SSL/TLS) loads the page; SMTP delivers your order confirmation by email; FTP may be used by the merchant to upload product images to the server.
HTTP/2 (RFC 7540, May 2015) added multiplexing, server push, and header compression, with security benefits for encrypted data.