Learn OSINT and online privacy
Clear, practical guides to understanding your digital footprint and using open-source intelligence responsibly. No jargon, no fluff — just how these things actually work and what you can do about them.
How to check if your email was in a data breach
What a breach actually is, how to check your exposure safely, and the exact steps to take if your email turns up in one.
Read guide →Username OSINT: finding accounts across platforms
How username enumeration works, why "found" doesn't always mean "theirs," and how to verify a match with confidence.
Read guide →WHOIS and RDAP explained: who owns a domain?
Read a domain's registration record, understand DNSSEC and statuses, and know why WHOIS is being replaced by RDAP.
Read guide →DNS records explained: A, MX, TXT, NS and more
A plain-English tour of the record types that make the internet work, and what each one tells an investigator.
Read guide →IP geolocation and reverse DNS: what an IP reveals
How IP location is estimated, what ASN and hosting flags mean, and why reverse DNS is a useful investigative clue.
Read guide →How to reduce your digital footprint
A practical, step-by-step routine to find, shrink, and control the public data that exists about you online.
Read guide →