| HTTPS |
HTTP Secure |
Secure version of HTTP (uses encryption) |
| FTP |
File Transfer Protocol |
Uploading/downloading files |
| SMTP |
Simple Mail Transfer Protocol |
Sending emails |
| IMAP / POP3 |
Internet Message Access Protocol / Post Office Protocol |
Receiving emails |
| TCP/IP |
Transmission Control Protocol / Internet Protocol |
Foundation of the Internet — ensures data reaches the correct destination |
| DNS |
Domain Name System |
Converts website names (like google.com) into IP addresses |
| SSH |
Secure Shell |
Secure remote login to servers |