lookup> CNAME

CNAME ·Record

the canonical name for an alias

value 5activeRFC 1035

Quick facts

TypeCNAME

Value5

Statusactive

Meaningthe canonical name for an alias

SpecificationRFC 1035

Purpose

What does a CNAME record do?

the canonical name for an alias

CNAME is one of the DNS resource record (RR) types defined by RFC 1035.

Example

www.example.com. 3600 IN CNAME example.com.

Related record types

Common uses

Frequently asked questions

Alias a subdomain, Point www to the apex domain, CDN mapping

In the DNS management panel of your registrar or DNS provider (for example Cloudflare or Route53).

Sources & standards

Updated 2026-08-18

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