Most founders only check one domain at a time. But your competitor isn't running one domain.

They're running landing pages, regional variants, product subbrands, and test domains, all quietly registered under the same email or company name.

Here's what I do: I take their company name or a known registrant email and run a reverse WHOIS lookup on WhoisFreaks. It searches across 4B WHOIS records and returns every domain tied to that identity: active, expired, and historical.

In one query, you can see the following:

• What new products they're planning (domain registrations ahead of launches)

• Which markets they're targeting (regional TLDs)

• How aggressive their domain buying strategy is

It's not hacking. It's public data, used smartly.

Free to try, no credit card needed: whoisfreaks.com

What's your go-to competitor research tool? Drop it below.