The internet relies on a global system of Domain Name System (DNS) servers. These servers act like address books, matching your domain name (like yourname.com) to your hosting server’s IP address. When you make changes—like updating your DNS records, switching hosts, or launching your site for the first time—it takes time for all those DNS servers around the world to catch up.
Propagation is the time it takes for those changes to spread across the globe.
