Authentication & DNS Labs
Local browser tools that do not submit entered data to a server.
SPF Record Builder
Build a basic SPF record from IPv4 addresses, include domains, and policy.
DMARC Policy Builder
Generate a DMARC policy record with reporting and alignment controls.
DKIM Selector Planner
Create a selector naming and rotation worksheet.
DNS Change Planner
Generate a staged DNS change checklist.
Authentication Audit
Score SPF, DKIM, DMARC, PTR, HELO, TLS-RPT and MTA-STS readiness.
Alignment Worksheet
Compare visible From, return-path, and DKIM signing domains.
SPF Lookup Budget
Estimate DNS-mechanism lookup usage from include, a, mx, exists, and redirect counts.
DMARC Rollout Planner
Generate staged enforcement milestones.
PTR/HELO Checklist
Create validation steps for a sending IP identity.
Authentication Incident Record
Generate a concise authentication incident template.