OSINT Footprint Checker

Investigate IPs, domains, usernames, and email addresses using open-source intelligence. All lookups route through the edge — no data is stored.

Privacy: Lookups run via a Cloudflare edge function — your IP is not exposed to third-party services; they see the edge IP. Sources used per mode: IP — ipwho.is, Cloudflare DoH; Domain — RDAP (rdap.org), Cloudflare DoH, crt.sh; Username — GitHub, GitLab, Hacker News, Docker Hub, npm (may include publicly-set email); Email — Cloudflare DoH. No queries or results are logged or stored. See documentation for full details.

Investigate your own IP instantly →

IP Address

Retrieves geolocation, ASN, reverse DNS, and IP classification.

Domain Name

WHOIS/RDAP registration data, all DNS records, email security (SPF/DMARC), and certificate transparency subdomains.

Username

Checks for account existence across GitHub, GitLab, Hacker News, Docker Hub, and npm.

Email Address

Analyses the email domain's MX records, SPF/DMARC configuration, and mail provider.

Running OSINT checks via edge (may take a while)...