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Free Post-Quantum, Domain Trust, and Security Headers Scanners

Free scanners

Pick a scan to run

Three checks for your public surface. Each runs against any public hostname, no login required. Choose one to begin.

Key exchange algorithm
Hybrid KEX detection
Certificate key & lifetime
Weak protocols and ciphers
Next migration step
MCPAvailable to AI agents asscan_post_quantumathttps://mcp.fedlin.com/mcp
MCPAvailable to AI agents asscan_domain_trustathttps://mcp.fedlin.com/mcp
CSP
HSTS
X-Frame-Options
Referrer-Policy
+ 5 more
MCPAvailable to AI agents asscan_security_headersathttps://mcp.fedlin.com/mcp

These tools cover your public surface.

In-boundary endpoints, firmware, code dependencies, and your full cryptographic inventory require an assessment. A scoping call identifies what your architecture actually requires.

Book a Scoping Call

Want the background on the headers check first? Read why missing security headers matter and what to fix.

For AI agents

These scanners are also callable as agent tools via the FEDLIN MCP server at https://mcp.fedlin.com/mcp (Streamable HTTP). Tools: scan_post_quantum, scan_domain_trust, scan_security_headers. Each takes a public hostname, is passive, and rate-limited. See llms.txt for the full agent context.