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Free SPF checker

Free SPF checker and SPF lookup tool

Run a free SPF checker to inspect the live Sender Policy Framework record for any domain. Use this SPF lookup tool to validate the active policy, review mechanisms, count DNS lookups, and spot issues before sender changes hurt deliverability.

Run a free SPF lookup

Check the live SPF record for a domain

Enter the root domain used for sending. This SPF checker returns the visible policy, a flattened view when available, a lookup count, and clear warnings or errors.

Public SPF checks are one-shot only. Use the product workflow for recurring sender-auth monitoring.