📞 The Internet's Phonebook: A Complete Guide to DNS Records (from A to ALIAS)

2025-11-13

Every time you type google.com into your browser, some magic happens. Your computer doesn’t know where that site physically lives. To find out, it asks the DNS (Domain Name System) — a giant distributed database often called “the Internet’s phone book.”

This book consists of records, each of which tells the world something specific about your domain: where your site lives, where to send email, or how to verify that you own the domain.