Scan any public website for security, technical SEO, and code-quality issues in under a minute. Free tier with no account; paid monitoring with alerts, change detection, and team seats from $15/mo.
Every CRUCiBLE Security scan comes with free step-by-step remediation guides so you can fix issues yourself. No account required. No payment needed. We believe security knowledge should be free.
Scan is free. Suggestions are free. We only charge if you want us to fix it for you.
External signal only. We check what is reachable from the public internet — a passing score is a useful indicator, not a substitute for a full audit or compliance certification. Only scan domains you own or are authorized to test. Terms · Privacy
Crucible Security runs in the cloud — no hardware, no agents, no per-seat math. Run the free scanner now. When the paid tier ships this summer, it's flat-rate for the whole platform.
84 checks across security, marketing, SEO, AIO, and code quality. No account, no credit card. Open-source on GitHub. Run it now ↑
Agent Crucible, Agent Shadow, Agent Purge, Agent Anvil, Agent Atlas, Agent Temper, Agent Alloy. Each watches a different domain — together they form one orchestrated sight. Meet the agents →
Honeypots, canary tokens, and decoy assets at $15/mo. Enterprise-grade deception tech that's normally five figures a year. See pricing →
This runs entirely in your browser. Nothing is uploaded. Nothing is stored. Just a quick snapshot of your browser's security posture.
Private beta opens Summer 2026. Request an invite — we're onboarding a small cohort of security teams who want to stop running seven tools to catch one attacker.