DNS stands for Domain Name System — it’s like the internet’s phonebook. When someone types your domain name into a browser, DNS tells it which server to connect to.

Every domain has DNS records like A (points to your IP), MX (handles email), and CNAME (for subdomains). These records tell browsers and tools where to go and what to do.

Managing DNS sounds technical, but most domain providers have simple dashboards. You just enter a few values and wait for the changes to propagate.

Messed up DNS can break your site or email — so always double-check entries and keep backups if your host allows it.

To make DNS easier to understand and manage, high-availability hosting lists the hosting companies with the best DNS tools and support.