Email Security Checker
See whether a domain can be spoofed by phishers. Enter a domain and we'll grade its SPF, DKIM, and DMARC setup A–F with plain-English fixes.
Public DNS lookup only — no login, nothing stored
How this works
- We query the domain's public DNS for its SPF, DKIM, and DMARC records
- Each record is parsed and scored, then combined into an overall A–F grade
- You get specific, plain-English guidance on what to add or tighten
- The check never touches your mailbox and the domain isn't stored