{"$schema":"https://verifymcp.io/schemas/trust-report.json","schemaVersion":1,"license":{"name":"CC BY-NC 4.0","url":"https://creativecommons.org/licenses/by-nc/4.0/"},"generatedAt":"2026-11-05T16:30:48.498Z","url":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp","markdownUrl":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp.md","server":{"slug":"theluckystrike-subdomain-finder-mcp","name":"Subdomain Finder MCP","registryName":"io.github.theluckystrike/subdomain-finder-mcp","description":"Passive subdomain enumeration from certificate transparency (certspotter, crt.sh) with DNS checks.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"subdomain-finder-mcp","type":"remote","identifier":"https://subdomain-finder-mcp.lipmichal.workers.dev/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp","version":"1.0.0","transport":null,"scoredAt":"2026-11-05T05:25:16.232Z"},"score":{"total":66,"tier":"medium","status":"scored","weekDelta":null,"history":[{"date":"2026-11-05","total":66},{"date":"2026-11-04","total":66},{"date":"2026-11-03","total":65},{"date":"2026-11-02","total":65}]},"categories":[{"name":"Endpoint Security","score":63,"verdict":"fail","reasons":["The endpoint's TLS certificate is valid, in date, and uses a strong key.","No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.","HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.","HSTS check failed: the Strict-Transport-Security header is absent.","DNSSEC check failed: this domain isn't protected by DNSSEC."],"codes":[{"code":"tls.valid","args":{}},{"code":"auth.none_no_destructive","args":{}},{"code":"https.inconclusive","args":{"reason":"plaintext_status","status":"405"}},{"code":"headers.hsts_absent","args":{}},{"code":"dnssec.absent","args":{}}]},{"name":"Transport & Reachability","score":100,"verdict":"pass","reasons":["Verified streamable-http transport via a live MCP handshake."],"codes":[{"code":"transport.verified","args":{"transport":"streamable-http"}}]},{"name":"Schema Quality & AI Usability","score":63,"verdict":"fail","reasons":["AI-judged instruction clarity (good).","Context-footprint check failed: tool/resource definitions use about 960 tokens (~240/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.ai_quality","args":{"band":"good"}},{"code":"schema.footprint_heavy","args":{"avg":"240","items":"4","tools":"4","tokens":"960","resources":"0"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":10,"verdict":"partial","reasons":["Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"3"}}]},{"name":"Tool Coverage","score":100,"verdict":"pass","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","100% of tool parameters carry a description."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"100"}}]},{"name":"Tool Safety","score":100,"verdict":"pass","reasons":["No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.","We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it."],"codes":[{"code":"toolsafety.injection_clean","args":{}},{"code":"toolsafety.destructive_none","args":{"tools":"4"}},{"code":"toolsafety.manipulation_clean","args":{"units":"5","judged":"5"}}]},{"name":"Capabilities","score":100,"verdict":"pass","reasons":["Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28."],"codes":[{"code":"protocol.supported","args":{"latest":"2026-07-28","version":"2025-11-25"}}]}],"inconclusive":["HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement."],"malware":[],"components":[{"slug":"subdomain-finder-mcp","type":"remote","identifier":"https://subdomain-finder-mcp.lipmichal.workers.dev/mcp","withdrawn":false,"score":66,"current":true,"url":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp","markdownUrl":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp.md"}],"facts":[{"label":"Endpoint","value":"https://subdomain-finder-mcp.lipmichal.workers.dev/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.0.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"find_subdomains","title":"Find subdomains (certificate transparency)","description":"Passive subdomain enumeration for a domain from live certificate transparency logs: certspotter (unexpired certificates) with crt.sh as fallback or for expired history. Returns deduplicated hostnames with first seen and last seen issuance dates, certificate count, issuers and whether a wildcard certificate covers the name, plus the list of wildcard entries. Set resolve=true to also check the first 40 names with DNS over HTTPS and mark live hosts. Passive lookup of public certificate transparency logs; nothing is sent to the target. Use it on assets you own or are authorised to test.","inputs":[{"name":"domain","type":"string","required":true,"description":"Registered domain, for example \"example.com\". A URL is accepted and reduced to its host."},{"name":"include_expired","type":"boolean","required":false,"description":"Also include names from expired certificates (uses crt.sh). Finds retired hosts; slower."},{"name":"limit","type":"integer","required":false,"description":"Max hostnames returned (1-1000). Totals are always reported."},{"name":"max_pages","type":"integer","required":false,"description":"certspotter pages to read (1-5). Each page is one request against its keyless rate limit."},{"name":"resolve","type":"boolean","required":false,"description":"Also resolve up to 40 of the returned names over DNS (newest first)."},{"name":"source","type":"string","required":false,"description":"auto = certspotter first (fast, unexpired certificates), crt.sh if it fails or throttles. crtsh = crt.sh only (includes expired with include_expired)."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":290},{"name":"resolve_subdomains","title":"Resolve subdomains (DNS over HTTPS)","description":"Resolve up to 40 hostnames now through Cloudflare DNS over HTTPS (A, AAAA and the CNAME chain). Each host is marked live, nxdomain, no_records or dangling_cname (a CNAME whose target does not exist, a subdomain takeover lead), and CNAME targets on cloud platforms (S3, Azure, Heroku, GitHub Pages, Netlify, Vercel and others) are named. Also probes a random label per parent domain to detect wildcard DNS. DNS lookups only; no connection is made to the hosts.","inputs":[{"name":"check_wildcard","type":"boolean","required":false,"description":"Probe one random label under each parent domain (max 3) to detect wildcard DNS."},{"name":"hosts","type":"array","required":true,"description":"Hostnames, for example [\"www.example.com\", \"api.example.com\"]. Max 40."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":176},{"name":"get_certificate_history","title":"Get certificate history for a host","description":"Certificates logged in certificate transparency for one hostname (or a whole domain with include_subdomains): issuer organisation and DN, not_before and not_after dates, every SAN on the certificate, revocation status and SHA-256 where certspotter has them. Summarises first and last issuance and the issuers used, which shows CA changes and renewal cadence. Default source certspotter (unexpired); include_expired uses crt.sh for the full history.","inputs":[{"name":"host","type":"string","required":true,"description":"Hostname, for example \"api.example.com\" or \"example.com\"."},{"name":"include_expired","type":"boolean","required":false,"description":"Also include names from expired certificates (uses crt.sh). Finds retired hosts; slower."},{"name":"include_subdomains","type":"boolean","required":false,"description":"Also include certificates for names under the host."},{"name":"limit","type":"integer","required":false,"description":"Max certificates returned, newest first (1-100)."},{"name":"source","type":"string","required":false,"description":"auto = certspotter first (fast, unexpired certificates), crt.sh if it fails or throttles. crtsh = crt.sh only (includes expired with include_expired)."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":222},{"name":"summarize_attack_surface","title":"Summarize attack surface from CT","description":"Reads a domain's subdomains from live certificate transparency and groups them for recon triage: development and test, staging, admin and internal tools, APIs, authentication, mail, remote access (VPN), storage and CDN, legacy and backup. Each group has a count, examples and why it matters. Also returns naming clusters (for example *.eu.example.com), certificate issuers in use, wildcard entries and the 10 newest names. Passive only.","inputs":[{"name":"domain","type":"string","required":true,"description":"Registered domain, for example \"example.com\". A URL is accepted and reduced to its host."},{"name":"include_expired","type":"boolean","required":false,"description":"Also include names from expired certificates (uses crt.sh). Finds retired hosts; slower."},{"name":"source","type":"string","required":false,"description":"auto = certspotter first (fast, unexpired certificates), crt.sh if it fails or throttles. crtsh = crt.sh only (includes expired with include_expired)."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":191}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-05T05:25:16.000Z","track":"remote","endpoint":"https://subdomain-finder-mcp.lipmichal.workers.dev/mcp","declaredUrl":null,"truncated":false,"tls":{"outcome":"valid","label":"Valid","version":"TLS 1.3","cipherSuite":"TLS_AES_128_GCM_SHA256","chainError":null,"certificates":[{"subject":"CN=lipmichal.workers.dev","issuer":"CN=WE1,O=Google Trust Services,C=US","notBefore":"2026-10-02T17:26:09Z","notAfter":"2026-12-31T18:25:56Z","keyType":"ECDSA","keyBits":256,"isCa":false},{"subject":"CN=WE1,O=Google Trust Services,C=US","issuer":"CN=GTS Root R4,O=Google Trust Services LLC,C=US","notBefore":"2023-12-13T09:00:00Z","notAfter":"2029-02-20T14:00:00Z","keyType":"ECDSA","keyBits":256,"isCa":true},{"subject":"CN=GTS Root R4,O=Google Trust Services LLC,C=US","issuer":"CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE","notBefore":"2023-11-15T03:43:21Z","notAfter":"2028-01-28T00:00:42Z","keyType":"ECDSA","keyBits":384,"isCa":true}]},"dnssec":{"result":"insecure","label":"Not signed","name":"subdomain-finder-mcp.lipmichal.workers.dev.","steps":[{"zone":".","outcome":"verified","label":"Verified"},{"zone":"dev.","outcome":"verified","label":"Verified"},{"zone":"workers.dev.","outcome":"insecure_proven","label":"Unsigned (proven)"}]},"auth":{"outcome":"none","label":"No authorisation required","gate":null,"gateLabel":null,"status":200,"authorizationServers":[]},"httpsRedirect":{"outcome":"inconclusive","label":"Inconclusive","status":405},"transports":[{"transport":"streamable-http","outcome":"verified","label":"Verified","status":200,"followed":false}],"provenance":null,"installScripts":[],"installScriptsTotal":null,"vulnerabilities":[],"vulnerabilitiesTotal":null,"dependencies":null},"mismatches":[],"changelog":{"trackingSince":"2026-11-02","recent":[{"id":"chg_01a1a4fe-47a1-7f16-90b4-0129fcd3d1e9","kind":"score.total_changed","summary":"Trust score (65 → 66)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-04","url":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp#chg-chg_01a1a4fe-47a1-7f16-90b4-0129fcd3d1e9"},{"id":"chg_01a19fd9-e20a-710b-83ca-d53bc283605f","kind":"check.reverified","summary":"Stability (unverified → 0.03)","materiality":"functional","direction":"improvement","scoreDelta":null,"occurredOn":"2026-11-03","url":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp#chg-chg_01a19fd9-e20a-710b-83ca-d53bc283605f"},{"id":"chg_01a19a80-4089-7dd7-a8a5-ce8f1f6efb05","kind":"score.first_scored","summary":"First indexed and scored","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-11-02","url":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp#chg-chg_01a19a80-4089-7dd7-a8a5-ce8f1f6efb05"}],"truncated":false,"feedUrl":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp/changelog.json"},"links":{"html":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp","markdown":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp.md","changelogJson":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp/changelog.json","changelogRss":"https://verifymcp.io/servers/theluckystrike-subdomain-finder-mcp/subdomain-finder-mcp.xml","external":[{"label":"Remote endpoint","href":"https://subdomain-finder-mcp.lipmichal.workers.dev/mcp"},{"label":"Repository","href":"https://github.com/theluckystrike/subdomain-finder-mcp"},{"label":"Website","href":"https://bugbountyreality.com/tools/subdomain-finder-real/"}]}}