{"uid":"cap_9E1w8cEwMEZov7dHbq3-a","slug":"preflight-agentdiet-dev-domain-osint-tls-certificate-security-headers-8c026212","name":"Domain OSINT, TLS Certificate & Security Headers Recon","description":"Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade. (Live x402 v2, IETF MPP & MCP endpoint at https://preflight.agentdiet.dev/v1/subdomain-scan)","url":"https://preflight.agentdiet.dev/v1/subdomain-scan?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","minLength":1,"description":"Target domain name (e.g. anthropic.com, openai.com) for DNS, TLS certificate, and security header OSINT"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.01","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qnAwF_JeDPj2rVZyHf3qG","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"preflight.agentdiet.dev","brandSlug":"preflight-agentdiet-dev-mpp","brandBaseUrl":"https://preflight.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer/expiry), and HTTP security header grading for a given domain.","exampleAgentPrompt":"Can you run a full DNS and TLS security recon on anthropic.com — I want to see the IPv4/IPv6 addresses it resolves to, who issued the SSL certificate and when it expires, and how its HTTP security headers are graded?","exampleUseCases":[{"title":"Pre-deployment security audit","prompt":"Before we launch our new service on example.com, can you check its DNS resolution, TLS certificate details, and HTTP security headers to make sure everything looks solid?"},{"title":"Competitor security posture check","prompt":"I want to understand the security setup of openai.com — can you pull its DNS records, SSL certificate issuer and expiry, and give me an HTTP security header grade?"},{"title":"Incident response domain investigation","prompt":"We're seeing suspicious traffic from malicious-site.com — can you do a quick OSINT sweep on that domain to get its IP addresses, TLS cert details, and security header configuration?"}],"resultDescription":"Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata including issuer and expiry date, and an HTTP security header grade/score for the target domain.","failureModes":["Domain does not exist or is unresolvable — returns DNS resolution failure","Domain has no HTTPS — TLS certificate fields may be empty or null","Firewall or rate-limiting on the target domain blocks header inspection","Invalid or malformed domain input — returns validation error","Timeout if the target server is slow or unresponsive"],"whenToPreferThis":"Choose this endpoint when you need a quick, live OSINT snapshot of a domain's DNS posture, TLS certificate health, and HTTP security header configuration in a single call. It is ideal for pre-launch audits, competitive intelligence, incident response triage, or verifying that a domain is properly secured before integrating with it.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:23.199Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-domain-osint-tls-certificate-security-headers-fa82a7d0"}