Domain Trust Report • Enterprise Software & Cloud Platforms

microsoft.com Security Audit & Domain Trust Score

Live security analysis of microsoft.com. Review Microsoft's multi-cluster SPF records, DMARC reject policy, Azure TLS certificate, and domain health.

Quick Answer • microsoft.com Security Posture Rating

microsoft.com operated by Microsoft Corporation maintains an A+ Trust Rating (97/100). The domain enforces strict DMARC policy (p=reject; pct=100), uses 2048-bit RSA DKIM signatures, and is encrypted with TLS 1.3 certificates issued by Microsoft Azure TLS Issuing CA.

Live Security Audit for microsoft.com

Execute a live multi-protocol audit across DNS, SPF, DKIM, DMARC, and TLS handshake sockets.

Live DNS Probe

Security Architecture Overview: microsoft.com

Microsoft.com employs an enterprise multi-tier SPF architecture alongside strict DMARC p=reject enforcement. Outbound communications from Exchange Online and corporate infrastructure are cryptographically signed with dual-rotating DKIM keys.

Key Anti-Spoofing & Cryptographic Highlights

Hardfail SPF Enforcement: Terminated with "-all" to strictly disallow unlisted sending IP blocks.
Corporate DMARC Alignment: Strict rejection with automated telemetry collection.

Frequently Asked Questions

What is Microsoft's SPF configuration?

Microsoft splits its sending ranges across modular sub-records including _spf-a.microsoft.com and _spf-b.microsoft.com with a -all hardfail policy.