Free tools
Free checks for Microsoft 365. No sign-up.
Quick checks you or your clients can run today, with no account and nothing to connect.
Email security check
Enter any domain to see its SPF, DKIM, DMARC and MTA-STS, how well it is protected against spoofing, and how to fix what is missing.
Seconds · reads public DNS only
Open the toolMFA readiness check
Answer a few questions about your Microsoft 365 sign-in settings: enforcement, legacy authentication, admins, SMS, guests and break-glass accounts.
Two minutes · nothing connected
Open the toolCyber Essentials checklist
Every requirement across the five controls, where to check it in Entra, Intune and Defender, and what to confirm outside the tenant.
Tick as you go · print it for the file
Open the tool
Want the full picture?
These tools check what can be seen from outside, or what you tell them. The full assessment reads the tenant itself, with read-only consent, and checks 71 controls.