Lecture 2 Demo

History of Web and Internet, Protocols Governing the Web

1) Simulate DNS and HTTP Journey

DNS Resolution Request Response

This visual simulation demonstrates the same flow discussed in the lecture: URL input, DNS lookup, request dispatch, and server response.

2) Request Timeline Output

Click "Run Request Journey" to start the simulation.

3) HTTPS vs HTTP Comparison

HTTP

  • No transport encryption
  • Susceptible to interception
  • Generally not recommended for login/forms

HTTPS

  • Encrypted with TLS
  • Improves privacy and integrity
  • Required for modern secure web apps