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Lesson 2 of 3

HTTP & HTTPS Protocols

Learn about web communication protocols

HTTP & HTTPS Protocols

HTTP (HyperText Transfer Protocol) is the foundation of data communication on the web.

What is HTTP?

HTTP is a request-response protocol. When you visit a website:

  1. Your browser sends an HTTP request
  2. The server processes it
  3. The server sends back an HTTP response

HTTP Methods

GET    - Retrieve data (loading a page)
POST   - Send data (submitting a form)
PUT    - Update data
DELETE - Remove data

HTTPS - The Secure Version

HTTPS adds encryption using SSL/TLS:

  • Data is encrypted in transit
  • Prevents eavesdropping
  • Verifies website identity
  • Required for sensitive data
Important: Always use HTTPS for websites handling passwords, payments, or personal data.