Check your domain

See in under a minute what anyone on the internet can read about your domain: whether your email can be spoofed, how your DNS is set up and who is registering names that look like yours.

• Email: SPF, DMARC and MX, the records that stop someone sending mail as you.
• DNS: nameservers, CAA and wildcard records.
• Certificate logs: how many of your names are public.
• Lookalike domains with certificates, ready to host a copy of your site.

Everything comes from public DNS and public certificate logs. Nothing is sent to your servers.