// OUTREACH

Custom tracking domain

A custom tracking domain is a CNAME you control (like track.yourdomain.com) used for link tracking instead of a shared platform domain.

// IN PRACTICE

Mandatory for cold email in 2026. Shared tracking domains are routinely flagged by spam filters.

// RELATED TERMS
CNAMEClick tracking

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// MORE
SPFDKIMDMARCMX recordDNS propagationTXT recordCNAMEWarmupPre-warmed mailboxInbox placementDeliverabilitySender reputation
// READY

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