Single-pass security audit across seven layers: TLS version and cipher, post-quantum hybrid key-exchange support, HTTP security header coverage, Content-Security-Policy strictness, DNS email authentication (SPF / DKIM / DMARC / CAA), MITRE ATT&CK tactic alignment, and pattern-matched CWE / OWASP Top 10 / SANS Top 25 weakness indicators. Runs 3-probe consensus on every flaggable finding so caching-layer false positives are filtered before they hit your inbox. Read the walkthrough. Related: Modern security headers · Post-quantum crypto explained · Server-side probe architecture · WordPress hardening patterns.