Passive scan · 60 seconds
Domain reconnaissance
What an attacker sees of your domain without forcing anything: hosting, mail routing, Microsoft 365 tenant, SPF, DKIM, DMARC, MTA-STS. A score out of 100 and findings ranked by severity.
Scan a domain
Free tools
Check for yourself.
Tools we use ourselves at the start of an engagement, open to everyone. No sign-up and no usage cap: the full result appears on screen, free of charge. The PDF report, with guidance tailored to your domain, is available by email.
A tool shows you the outside. We look inside.
Thirty minutes to compare what a public tool sees with what your tenant actually holds.