WHOIS / RDAP
PublicReview public registration and ownership metadata.
ZeroAuthority / tools / domain intelligence
Domain intelligence
Registration data, email authentication and lookalike domains.
Email Security
FreeReview SPF, DKIM, and DMARC records.
Lookalike Domain Check
PaidFind registered typo and homoglyph variants of your domain.
Business Email Security Check
PaidSPF, DKIM, DMARC, MTA-STS and BIMI with a fix list.