Stateless · No account
DNS & Email Inspection
Query live DNS records and validate email authentication policies across multiple public resolvers.
IPv4 + IPv6 · SPF · DMARC · DKIM · MTA-STS · TLS-RPT
DNS Lookup
A · AAAA · MX · NS · TXT · SOA · CAA
Resolve records against Google, Cloudflare and Quad9. Compare responses side-by-side and detect propagation differences.
Email Authentication
SPF · DMARC · DKIM · MTA-STS · TLS-RPT
Inspect authentication policies, alignment and enforcement mode. Identify configuration gaps and missing protections.