{"domain":"mx1.grenode.net","port":443,"address":"2.56.158.65","resolved_addresses":["2.56.158.65"],"verified":false,"verification":"Certificate verification failed","verification_error":"Peer certificate subjectAltName did not match expected name `mx1.grenode.net'","certificate":{"subject":{"CN":"nable.grenode.net"},"issuer":{"C":"US","O":"Let's Encrypt","CN":"YE2"},"serial":"06E6219EB458EE84A865E299817958436E11","version":3,"valid_from":"2026-11-08T02:44:19+00:00","valid_to":"2027-02-06T02:44:18+00:00","validity":"valid_period","days_remaining":89,"san":"DNS:nable.grenode.net, DNS:supervision.grenode.net","signature":"ecdsa-with-SHA384","sha256":"56:A3:3E:FB:35:E6:CE:8A:20:43:AA:01:B5:0C:FE:59:BB:8F:F5:47:E6:F0:8F:FB:41:A6:09:DE:8B:17:9D:27","key_type":"EC","key_bits":256,"curve":"prime256v1","extensions":{"keyUsage":"Digital Signature","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:FALSE","subjectKeyIdentifier":"BD:32:DC:C8:DB:5F:24:0B:30:CF:F2:E0:C7:DD:B9:61:12:26:1B:80","authorityKeyIdentifier":"B9:59:F2:8E:CF:22:F0:86:D3:37:48:FF:76:14:18:BA:82:D8:55:87","authorityInfoAccess":"CA Issuers - 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These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `mx1.grenode.net'"],"attempts":[{"address":"2.56.158.65","verified":false,"error":"Peer certificate subjectAltName did not match expected name `mx1.grenode.net'"}],"checked_at":"2026-11-08T08:27:03+00:00","resolver":"Public DNS resolver","scope":"One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan."}