Know when someone registers a domain that looks like yours

Add the variants you care about. Get an alert the moment any of them changes.

You can't check them all manually

acme.com is yours. acme.net, acme.io, acme.co: any of these could be registered while you're not looking. Some will host a clone of your site. Others will sit on a parking page, ready to be sold back at a markup.

Brand monitoring tools exist, but most are priced for legal teams. Domain Sentinel gives you the same alerts, free.

How it works

  1. 1

    Find the variants

    Search each domain you want to track. See who owns it, when it expires, and whether the nameservers changed recently.

  2. 2

    Build your watchlist

    Add the extensions and misspellings that matter to your brand: .net, .io, .co, .org, and any common typos.

  3. 3

    Get alerted on any change

    A new registration, a nameserver update, a transfer: any change to a watched domain triggers an email.

Start protecting your brand

Free account. Monitor up to 20 domain variants. No credit card.

Create your free account