Free tool · No sign-up

Free Email & Domain Security Checker

Could someone send email that looks like it came from your business? Could you lose access to your domain? Find out in about a minute, with plain-English results and the technical details if you want them. Free, no sign-up.

Can someone impersonate your business email? Check your domain’s email protections and domain health. Free. No sign-up.

Check your domain

Example: yourcompany.com or you@yourcompany.com. Free and no sign-up. We don’t store what you check unless you ask us to email you the report or watch your domain.