Free email spoofing check

Type your business domain (the part after the @ in your email address). We read your public DNS records and tell you, in plain English, whether criminals could easily send email pretending to be you.


This check is passive: it only reads records that are already public, the same way every email server in the world does. Nothing touches your website or inbox. Your browser asks Cloudflare's public DNS service (cloudflare-dns.com) directly; we do not store what you type.