DNS & Domains

Understand how the Domain Name System works, from resolution to security.

Articles

What Is DNS?Learn what DNS is, how domain name resolution works, and why it is critical for internet connectivity.

What Is DNS Propagation?Understand DNS propagation, why changes take time to spread globally, and how to check propagation status.

What Is DNSSEC?Learn how DNSSEC protects DNS from spoofing and cache poisoning by adding cryptographic signatures.

What Is DNS TTL?Understand DNS TTL, how it controls caching behavior, and best practices for setting TTL values.

What Is a Nameserver?Learn what nameservers are, the different types, and how they route DNS queries to resolve domain names.