Glossary

What Is DNS (Domain Name System)?

The Domain Name System (DNS) is the internet's phone book — it translates human-readable domain names (like example.com) into IP addresses (like 93.184.216.34) that computers use to connect to each other. Modern security enhancements like [DNS-over-HTTPS](/glossary/dns-over-https) and [DNSSEC](/glossary/dnssec) add encryption and verification to this process.

Why It Matters

Every time you type a domain name into your browser, DNS is what makes it work. Without DNS, you’d need to memorize IP addresses like 93.184.216.34 instead of domain names like example.com.

For domain forwarding, DNS is the starting point. Before Domain Forward can redirect your domain, your DNS records need to tell the internet to send traffic to our servers. This is usually just two record changes: an A record and a CNAME record.

How It Works

  1. You type example.com in your browser
  2. Your browser asks a DNS resolver: “What IP address is example.com?”
  3. The resolver checks its cache, then queries nameservers up the chain
  4. Eventually it reaches the authoritative nameserver for example.com
  5. That nameserver responds with the IP address from the A record
  6. Your browser connects to that IP address

This entire process takes milliseconds and happens before any web page — or redirect — loads.

Key DNS Record Types

RecordPurposeUsed By Domain Forward?
A RecordMaps domain to IPv4 addressYes — points apex domain to our servers
AAAA RecordMaps domain to IPv6 addressOptional
CNAMEMaps subdomain to another domainYes — points www to our servers
MX RecordRoutes emailNo — untouched
TXT RecordStores text data (SPF, DKIM, verification)No — untouched
SRV RecordMaps specific services (ports)No — untouched
CAA RecordControls which CAs can issue certificatesNo — untouched
NS RecordDelegates to nameserversNo — managed by registrar

DNS and Domain Forwarding Setup

To set up forwarding with Domain Forward, you typically:

  1. Add your domain in the Domain Forward dashboard
  2. Update your A record to point to Domain Forward’s IP
  3. Update your CNAME record for www to point to Domain Forward
  4. Wait for DNS propagation (usually under an hour)

Your email, TXT records, and other DNS records stay exactly as they are. You can also verify your setup with a reverse DNS lookup. See our DNS setup guide for step-by-step instructions.

Related Terms

Related Features

Frequently
asked questions

Your DNS records tell the internet where to send traffic for your domain. To use Domain Forward, you point your DNS records to our servers — so when someone visits your domain, the request reaches us and we perform the redirect.

Still Confused? Try It Free.

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