DDactic finds what DDoS defenses miss. A six-stage recon pipeline maps your full attack surface before a single packet fires: subdomains, origin IPs behind your CDN, BGP/ASN exposure, and CDN/WAF coverage gaps. Then it simulates 156 L3-L7 vectors - HTTP/2 Rapid Reset, HTTP/3 QUIC, automated WAF-bypass - from a distributed 24-provider cloud fleet. Output is hardening as executable code: vendor-specific CLI commands and API integrations for Cloudflare, AWS Shield, Imperva, Akamai, and Radware that apply fixes directly from the dashboard, with a stage-reprobe confirming each fix held-no infrastructure access required. Audit-ready evidence for DORA, NIS2, and PCI DSS included. Free passive scan available.