Diagnostics for anyone who runs a domain
FatDig puts the checks that normally live across a dozen scattered tools — WHOIS, DNS, SSL, email authentication, security headers, hosting, and geolocation — onto a single page, in plain language.
What FatDig does
Point FatDig at any domain and it runs a live, read-only investigation: who owns it and when it expires, where it resolves and who hosts it, whether its certificate is valid and when it lapses, whether SPF/DKIM/DMARC are protecting its mail, what its response headers reveal, and whether anything sensitive is exposed on the homepage. Every result links to a short explainer in FatDig University so you understand not just what a value is, but why it matters.
For people who need to keep watching rather than check once, domain monitoring re-runs those checks on a schedule and emails you the moment a certificate is about to expire, DNS changes, email authentication breaks, hosting moves, or a secret leaks.
Who builds it
FatDig is built and operated by Data Path Pros, an independent software studio in Buckeye, Arizona. We build self-hosted, dependency-light web applications and run FatDig as a practical tool we wanted to exist — fast, honest, and free for everyday lookups, with a paid tier for teams that need continuous monitoring.
How we treat your data
FatDig only queries publicly available information about the domains you look up — the same records any browser or mail server can read. We don't sell data and we don't run ads. Reports may be cached to power a public archive and to mitigate abuse; sensitive values found during a scan are redacted. The full details are in our privacy policy.
Questions or feedback? Get in touch.