Every domain you own publishes a record. Sometimes that record quietly starts leaking your name, your address, or your personal email, because a registrar changed a default, a privacy proxy lapsed, or a transfer stripped the masking. Domain Privacy Monitor checks each of your domains every day and tells you the moment something private becomes public.
Built for people who own a handful of domains and would rather not have their personal address leaked. No tracking, no resale of your data. WHOIS data is held only long enough to detect a change, then deleted within 48 hours.

⁂
Does
Check Whois (and also RDAP) daily, alert you when registrant data shifts
Doesn’t
Store your WHOIS data longer than needed, or even include the leaked data in the email it sends you
From 6€/y
Free on request for activists if money is tight.