how to penetrate WHOIS privacy

legally, without court order

If you stitch together the pieces that are available from historical widely available and free (or cheap to access) databases, you can find ways to cut through WHOIS privacy in many cases. has an excellent database, as does both going back longer than the histories of many adversaries.

Generally it’s easier to leave trails and make mistakes when you’re small-time, which is why long history is always better. A person who does not make mistakes today, may have made many mistakes before.

Also and are excellent resources for rich data on domain names, IP addresses, names, email addresses and much more.