Documentation
README
Who owns this domain
Registration data tells you who bought the name; DNS tells you who runs the
service. They are frequently different parties, and conflating them is the
mistake that wrecks attribution. Everything here is passive except where flagged
— but note that dig aimed at the target's own nameservers lands in the
target's query logs, so resolve through a public recursive resolver or passive
DNS when you care about being quiet.
Which source first
This is the opening of the README. Read the full README on GitHub.