Email diagnostic
SPF record check
Find SPF policies and flag missing, duplicate, or unusually permissive records.
What you’ll learn
Understand who is authorized to send mail for the domain.
Live diagnostic
Server guardedSet the target
Transparent facts, not a magic score.
Every measurement is timestamped and tied to its provider. Component timings remain separate, provider errors stay visible, and paid fallback is disabled by default.
Inputdomain
Executionserver
Default cost$0 provider spend
Timeout8 seconds