Someone just registered your name in another extension. Would you know?

Domain Sentinel watches your domain name across .com, .net, .io, .fr and a dozen more, and emails you when a variant is registered or freed.

Your brand is more than one TLD

You own the .com. A competitor, a squatter or a phisher registers the .net, the .io or your country extension, points it at a copy of your site, and starts collecting your customers' logins or your leads.

Checking a dozen extensions by hand every week does not scale. And the variant you want for yourself never becomes available exactly when you happen to look.

How it works

  1. 1

    Add your main domain

    Turn on extension watching. We derive the variants from a curated list of popular TLDs, and you can add up to 10 extensions of your own.

  2. 2

    Every variant becomes a monitored domain

    Each variant inherits your domain's settings and gets the same daily registry check, with its own status view in your watchlist.

  3. 3

    Get alerted on registrations and drops

    When a variant is registered, expires or becomes available, you get an email the next morning. No manual checking.

Cover your name across extensions

Extension variants come with the Pro plan: the curated TLD list plus up to 10 custom extensions per domain.

Create your free account

Compare the plans