PLAN BETTER.
CHECK WHAT IS PUBLIC.
Five practical tools for early backup and continuity planning, plus point-in-time diagnostics for public certificates, DNS and SPF. No account, payment gate or fabricated results.
Backup Capacity Calculator
Estimate retained backup storage, repository headroom, offsite copy capacity and initial transfer time.
OPEN CALCULATOR →02 // RESILIENCERPO/RTO & Downtime Cost
Explore financial exposure, potential data loss and an indicative recovery control pattern.
OPEN CALCULATOR →03 // TLSSSL/TLS Certificate Checker
Inspect the public certificate and negotiated TLS details for a hostname on fixed TCP port 443.
CHECK CERTIFICATE →04 // DNSDNS Lookup
Query a controlled set of common public DNS record types and copy a timestamped diagnostic snapshot.
RUN LOOKUP →05 // EMAILSPF Record Checker
Parse an SPF policy, follow bounded includes and redirects, and identify common errors and risks.
CHECK SPF →Important: calculator outputs are estimates and diagnostics are point-in-time observations. Validate results, assumptions and designs before making production, security or investment decisions. Read the controlled Free Tools — Security, Privacy and Acceptable Use Statement.