4 Services from email-auth-check.quietworklabs.workers.dev

Recursively checks a domain's SPF record, counting DNS lookups against the 10-lookup limit and reporting void lookups, warnings, and qualifier details.

Checks a domain's full email authentication posture including SPF, DMARC, DKIM, MX, MTA-STS, TLS-RPT, BIMI, and bulk-sender readiness for Gmail/Yahoo/Outlook, plus domain expiry via RDAP

Looks up domain registration expiry, creation date, registrar, nameservers, DNSSEC status, and days-until-expiry for a given domain via RDAP.

Checks a domain's DMARC record, returning policy, alignment, pct, rua/ruf tags, subdomain policy, and validity status