{"$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":"2026-11-05T16:22:59.888Z","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard","markdownUrl":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard.md","server":{"slug":"dev-workers-mike-tusa-certguard-certguard","name":"CertGuard","registryName":"dev.workers.mike-tusa.certguard/certguard","description":"Free SSL/TLS certificate checker: expiry, chain trust, hostname match, TLS version, A/B/C/F grade.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"certguard","type":"remote","identifier":"https://certguard.mike-tusa.workers.dev/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard","version":"0.3.0","transport":null,"scoredAt":"2026-11-05T09:42:07.485Z"},"score":{"total":79,"tier":"medium","status":"scored","weekDelta":3,"history":[{"date":"2026-11-05","total":79},{"date":"2026-11-04","total":79},{"date":"2026-11-03","total":79},{"date":"2026-11-02","total":78},{"date":"2026-11-01","total":78},{"date":"2026-10-31","total":77},{"date":"2026-10-30","total":77},{"date":"2026-10-29","total":76},{"date":"2026-10-28","total":76},{"date":"2026-10-27","total":75},{"date":"2026-10-26","total":75},{"date":"2026-10-25","total":74},{"date":"2026-10-24","total":74},{"date":"2026-10-23","total":73},{"date":"2026-10-22","total":73},{"date":"2026-10-21","total":72},{"date":"2026-10-20","total":72},{"date":"2026-10-19","total":72},{"date":"2026-10-18","total":71},{"date":"2026-10-17","total":71},{"date":"2026-10-16","total":70},{"date":"2026-10-15","total":70},{"date":"2026-10-14","total":69},{"date":"2026-10-13","total":69},{"date":"2026-10-12","total":68},{"date":"2026-10-10","total":67}]},"categories":[{"name":"Endpoint Security","score":69,"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.","The HSTS (Strict-Transport-Security) header is present.","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_present","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":65,"verdict":"fail","reasons":["AI-judged instruction clarity (excellent).","Context-footprint check failed: tool/resource definitions use about 482 tokens (~482/item across 1 items; 1 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":"excellent"}},{"code":"schema.footprint_heavy","args":{"avg":"482","items":"1","tools":"1","tokens":"482","resources":"0"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":87,"verdict":"partial","reasons":["Stability observed for 26 of 30 days with no destabilising changes; credit accrues until the full window elapses."],"codes":[{"code":"stability.building_history","args":{"days":"26"}}]},{"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.","Structured output schemas are declared (100% of tools); any adoption earns full credit."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"100"}},{"code":"toolquality.output_present","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 1 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 2 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":"1"}},{"code":"toolsafety.manipulation_clean","args":{"units":"2","judged":"2"}}]},{"name":"Capabilities","score":100,"verdict":"pass","reasons":["Implements a current MCP spec version (2026-07-28)."],"codes":[{"code":"protocol.current","args":{"version":"2026-07-28"}}]}],"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":"certguard","type":"remote","identifier":"https://certguard.mike-tusa.workers.dev/mcp","withdrawn":false,"score":79,"current":true,"url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard","markdownUrl":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard.md"}],"facts":[{"label":"Endpoint","value":"https://certguard.mike-tusa.workers.dev/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"0.3.0"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"check_certificate","title":"Check a server's SSL/TLS certificate (expiry, chain, hostname, TLS version)","description":"Run a live TLS handshake against host:port and audit the certificate the server presents. Returns an A/B/C/F grade and summary, expiry (days remaining), hostname match, chain completeness and trust against Mozilla's root store, negotiated TLS version and cipher suite, key type/size, findings, and a link to the full report. Revocation (OCSP/CRL) is NOT checked. Hosts on Cloudflare's own network cannot be checked live (result: isError with code live_check_unavailable, no grade); a failed handshake returns check_failed with no grade. Read-only: it only opens a TLS connection to the public host. Same engine, cache and limits as the CertGuard JSON API (GET /api/v1/check).","inputs":[{"name":"host","type":"string","required":true,"description":"Hostname or public IP to check, e.g. example.com. An https:// URL is accepted and reduced to its host (and port). Private, internal and reserved addresses are rejected."},{"name":"include_raw","type":"boolean","required":false,"description":"Also return the full /api/v1/check JSON (all chain certificates, SANs, handshake attempts) in structuredContent.raw. Larger output."},{"name":"port","type":"integer","required":false,"description":"TCP port (default 443). Allowed: 443, 8443, 465, 993, 995."}],"outputs":[{"name":"apiUrl","type":"string","required":false,"description":null},{"name":"cached","type":"boolean","required":false,"description":null},{"name":"certificate","type":"object","required":false,"description":null},{"name":"chain","type":"object","required":false,"description":null},{"name":"checkedAt","type":"string","required":false,"description":null},{"name":"expiry","type":"object","required":false,"description":null},{"name":"grade","type":"string","required":true,"description":null},{"name":"gradeEstimated","type":"boolean","required":false,"description":"true when the result was inferred from Certificate Transparency logs instead of a live handshake"},{"name":"host","type":"string","required":true,"description":null},{"name":"hostname","type":"object","required":false,"description":null},{"name":"issues","type":"array","required":false,"description":null},{"name":"notChecked","type":"array","required":false,"description":null},{"name":"plan","type":"string","required":false,"description":null},{"name":"port","type":"integer","required":true,"description":null},{"name":"raw","type":"object","required":false,"description":"Full /api/v1/check response (only when include_raw is true)"},{"name":"reportUrl","type":"string","required":true,"description":null},{"name":"revocation_checked","type":"boolean","required":true,"description":"Always false: OCSP/CRL status is not queried"},{"name":"source","type":"object","required":false,"description":null},{"name":"status","type":"string","required":true,"description":null},{"name":"summary","type":"string","required":true,"description":null},{"name":"tls","type":"object","required":false,"description":null},{"name":"version","type":"string","required":false,"description":null}],"hasOutputSchema":true,"hasExamples":false,"tokenEstimate":269}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-05T09:42:07.000Z","track":"remote","endpoint":"https://certguard.mike-tusa.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=mike-tusa.workers.dev","issuer":"CN=WE1,O=Google Trust Services,C=US","notBefore":"2026-10-12T19:39:51Z","notAfter":"2027-01-10T20:37:31Z","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":"certguard.mike-tusa.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":"2026-10-10","recent":[{"id":"chg_01a1a0c0-8b29-767d-9c64-6e6d4d480140","kind":"score.total_changed","summary":"Trust score (78 → 79)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-03","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a1a0c0-8b29-767d-9c64-6e6d4d480140"},{"id":"chg_01a19674-4622-767d-9100-73ca71929609","kind":"score.total_changed","summary":"Trust score (77 → 78)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-11-01","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a19674-4622-767d-9100-73ca71929609"},{"id":"chg_01a18c27-ce48-76e8-9a5d-5f79c7eea838","kind":"score.total_changed","summary":"Trust score (76 → 77)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a18c27-ce48-76e8-9a5d-5f79c7eea838"},{"id":"chg_01a181d4-b4dc-7eb0-9bd8-fb0c55cbf368","kind":"score.total_changed","summary":"Trust score (75 → 76)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-28","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a181d4-b4dc-7eb0-9bd8-fb0c55cbf368"},{"id":"chg_01a17787-54c0-72d7-8cba-77400851e2f5","kind":"score.total_changed","summary":"Trust score (74 → 75)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-26","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a17787-54c0-72d7-8cba-77400851e2f5"},{"id":"chg_01a16d3a-bbc2-79ac-a748-0916ee16355a","kind":"score.total_changed","summary":"Trust score (73 → 74)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-24","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a16d3a-bbc2-79ac-a748-0916ee16355a"},{"id":"chg_01a162ed-ba45-7c65-81ea-e176741ac761","kind":"score.total_changed","summary":"Trust score (72 → 73)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-22","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a162ed-ba45-7c65-81ea-e176741ac761"},{"id":"chg_01a15377-9d8c-7b66-9094-5bb3bd33fe3d","kind":"score.total_changed","summary":"Trust score (71 → 72)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-19","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a15377-9d8c-7b66-9094-5bb3bd33fe3d"},{"id":"chg_01a1492a-6105-7e97-9a9b-c74d8ab08243","kind":"score.total_changed","summary":"Trust score (70 → 71)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-17","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a1492a-6105-7e97-9a9b-c74d8ab08243"},{"id":"chg_01a14406-da66-7100-9c44-a34cef56eea4","kind":"server.version_changed","summary":"Server version (0.2.0 → 0.3.0)","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-16","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a14406-da66-7100-9c44-a34cef56eea4"},{"id":"chg_01a13ede-fc0b-7985-8b52-18499089d421","kind":"score.total_changed","summary":"Trust score (69 → 70)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-15","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a13ede-fc0b-7985-8b52-18499089d421"},{"id":"chg_01a1348f-7ba0-740b-9a3d-ca9a248b43be","kind":"score.total_changed","summary":"Trust score (68 → 69)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-13","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a1348f-7ba0-740b-9a3d-ca9a248b43be"},{"id":"chg_01a12e47-9d1a-703d-aeab-5fdae6d73d95","kind":"check.reverified","summary":"Stability (unverified → 0.07)","materiality":"functional","direction":"improvement","scoreDelta":null,"occurredOn":"2026-10-12","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a12e47-9d1a-703d-aeab-5fdae6d73d95"},{"id":"chg_01a12e47-9d1c-71db-9ed7-e2f65e0f62a9","kind":"score.total_changed","summary":"Trust score (67 → 68)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-12","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a12e47-9d1c-71db-9ed7-e2f65e0f62a9"},{"id":"chg_01a1264a-2798-78ff-a051-f12ef1101322","kind":"score.first_scored","summary":"First indexed and scored","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-10","url":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard#chg-chg_01a1264a-2798-78ff-a051-f12ef1101322"}],"truncated":false,"feedUrl":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard/changelog.json"},"links":{"html":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard","markdown":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard.md","changelogJson":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard/changelog.json","changelogRss":"https://verifymcp.io/servers/dev-workers-mike-tusa-certguard-certguard/certguard.xml","external":[{"label":"Remote endpoint","href":"https://certguard.mike-tusa.workers.dev/mcp"},{"label":"Website","href":"https://certguard.mike-tusa.workers.dev/"}]}}