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CNAME Domain Parking & DNS Resource Records

Web & Domains beginner 4 min read $0.01 Updated 2026-07-31

An explainer of DNS resource records: the four fields (host, type, TTL, data) every record uses, what the A, AAAA, CNAME, and MX record types do, and how multiple MX records with priority values provide email failover — including the trailing-dot FQDN gotcha.

DNS resource records are the switchboard of your domain — they decide where web traffic and email actually go. This guide breaks down the record types you'll meet (A, AAAA, CNAME, MX), the four fields every record uses, and how MX priority gives your email failover.

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