A CNAME record creates an alias from one hostname to another. It is commonly used for www, subdomains, and SaaS integrations where the provider controls the target.
A CNAME points to another hostname, which then resolves to A or AAAA. Use the CNAME lookup tool to verify the alias target and confirm the final A/AAAA answers.
Run the CNAME lookup, then validate the target with the A record tool or the AAAA record check. For propagation issues, compare multiple resolvers using the DNS propagation check.
CNAME often pairs with A and AAAA. For delegation questions, see the NS guide.