WebChecks

DKIM Checker

Deep-dive DKIM analysis for any domain — check common/provider-inferred selectors, or name your own for a definitive answer.

DKIM selectors can't be enumerated from the outside — this tool can only probe common and provider-inferred names by default. If you know your selector (check your mail provider's DKIM setup instructions), name it here for a definitive answer instead of a candidate guess. Comma-separated, up to 5.