Can anyone send email as your domain?

Type a domain. We check it from the outside — the way a customer or an attacker sees it — and tell you what we find. Four things that all carry a date and all change without telling anyone: whether mail can be forged in your name, when your HTTPS certificate expires, when your domain registration renews, and whether the site actually answers. No signup. No email address. Nothing to install.

We check only what is published publicly in DNS and served on the public internet. Free checks are limited per visitor.