DSA Factory
Curriculum
Computer networks

Names and the web

About 7 steps, from the first idea to a mastery test.

  1. Stage 0DNSComing soon
  2. Stage 1NamesFree
    1. 1How DNS resolves a name14 min
    2. 2DNS records and their time to live12 min
  3. Stage 2The webFree
    1. 1HTTP requests and responses13 min
    2. 2Cookies, and why HTTP versions differ14 min
  4. Stage 3HTTPComing soon
  5. Stage 4Security and masteryComing soon
  6. Stage 5Security and the whole journeyFree
    1. 1TLS and HTTPS15 min
    2. 2Email: SMTP and IMAP12 min
    3. 3What happens when you type a URL15 min
Start freeTry a step first