HTTP/HTTPS
The protocols for transferring data between web browsers and servers.
Definition
HTTP (Hypertext Transfer Protocol) is the foundational protocol for web communication. HTTPS adds encryption via SSL/TLS, protecting data transmission from interception. Modern best practices require HTTPS for all websites.
HTTP methods include GET (retrieve), POST (create), PUT (update), and DELETE (remove).
Why It Matters
HTTPS protects user data, builds trust, and is required for many browser features. Search engines favor HTTPS sites, and browsers mark HTTP sites as "not secure."
Understanding HTTP fundamentals helps debug issues and optimize performance.
Examples in Practice
A site migration to HTTPS includes updating internal links and implementing proper redirects from HTTP.
An API troubleshooting session examines HTTP response codes to identify why requests are failing.
Performance optimization implements HTTP/2 for faster parallel resource loading.