Pre-whitelisting due diligence
Paste a domain or public IP. Get one report covering blacklist reputation, who owns it and for how long, DNS and mail hygiene, and certificate health — with a clear verdict and the reasons behind it.
No account needed for a one-off check — nothing is saved. Sign in to keep your lookup history, share reports and build the team's approved list.
Threat-intel and blocklist verdicts side by side, each source shown separately so you can judge for yourself.
Registration date, registrar, country, expiry and abuse contact. Freshly registered domains get flagged.
A, MX and NS records plus SPF, DMARC and DNSSEC — the mxtoolbox basics, scored.
Issuer, validity window, days remaining and whether the certificate actually covers the hostname.