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Impersonation
What is a lookalike domain?
How small changes to a domain can create a convincing false identity.
One subtle change
A changed character, added word, misleading prefix or alternative suffix can make an unrelated domain look familiar at a glance.
Different protection surface
DMARC protects policy on the domain you control. It cannot stop someone registering a different available domain.
Lookalike Domain Defense monitors for deceptive registrations and prioritizes relevant risk signals, such as email configuration and registration context.