DNS Dependency Checker

Enter DNS query RTT, failure count, application type, and DNSSEC status to determine if DNS is likely contributing to perceived slowness. Evaluates against financial SLA thresholds (Good <50ms, Acceptable 50-150ms, Poor 150-300ms, Critical >300ms) and classifies failure rate severity.

Includes server type detection (public vs private resolver), DNSSEC overhead advisory, and application-specific dependency context for ATM, POS, Teller, Web, and VPN. No real-time DNS probes — fully deterministic from your inputs.