Free · 100% passive · No login
We check your public DNS, email authentication (SPF, DMARC, DKIM), SSL certificate and security headers — the things attackers check first. Passive lookups only: nothing is scanned or probed.
Passive public-record checks only (DNS, TLS, HTTP response headers). This is an educational report, not a security audit, penetration test, or guarantee of safety. Results vary.
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