Domain due-diligence report API: one call composes WHOIS/RDAP registration data, DNS records (A, MX, TXT), live email deliverability, and homepage title + excerpt into a single dossier with deterministic risk flags (new registration, expiring soon, no DNSSEC, no mail service, unreachable homepage). Partial-success per section — charged only when the core identity sections resolve. Use for vendor vetting, KYC screening, phishing triage, and onboarding agents. Cached up to 1 hour.