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List of Essential Internet Protocols

📝 Cheat Sheet

Essential Internet Protocols

  1. HTTP
  2. HTTPS
  3. FTP
  4. FTPS
  5. SMTP
  6. POP
  7. IMAP
  8. TCP
  9. UDP
  10. XMPP
  11. P2P

Here are the essential protocols used in our daily digital activities.

ProtocolFull FormDescription
HTTPHypertext Transfer ProtocolFor web browsing.
HTTPSHypertext Transfer Protocol SecureSecure web browsing with encryption.
FTPFile Transfer ProtocolTransferring files between computers.
FTPSFile Transfer Protocol SecureSecure file transfer.
SMTPSimple Mail Transfer ProtocolSending emails.
POPPost Office ProtocolRetrieving emails from a server.
IMAPInternet Message Access ProtocolAccessing emails on a server.
TCPTransmission Control ProtocolReliable data delivery.
UDPUser Datagram ProtocolFaster, less reliable data delivery.
XMPPExtensible Messaging and Presence ProtocolInstant messaging.
P2PPeer-to-PeerDirect communication between users.
Pop Quiz
You need to send an email to a colleague. Which protocol handles the sending of that email?
Last updated on • Talha