{"domain":"exploratorium.edu","port":443,"address":"23.185.0.1","resolved_addresses":["23.185.0.1","2620:12a:8001::1","2620:12a:8000::1"],"verified":true,"verification":"Certificate chain, hostname and dates verified using this server\u2019s CA store.","verification_error":null,"certificate":{"subject":{"CN":"exploratorium.edu"},"issuer":{"C":"US","O":"Let's Encrypt","CN":"YR1"},"serial":"06CCD4FD899368B5F34D48FC51587CEAA680","version":3,"valid_from":"2026-09-12T06:48:16+00:00","valid_to":"2026-12-11T06:48:15+00:00","validity":"valid_period","days_remaining":77,"san":"DNS:exploratorium.edu","signature":"RSA-SHA256","sha256":"4B:84:2F:8A:27:91:05:65:43:9C:E1:97:76:93:C9:06:DE:CC:BB:C2:36:E8:16:78:A1:07:F3:0A:44:86:09:D6","key_type":"RSA","key_bits":2048,"curve":null,"extensions":{"keyUsage":"Digital Signature, Key Encipherment","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:FALSE","subjectKeyIdentifier":"82:A2:6F:3D:56:4C:73:96:35:D8:22:5B:EE:7F:EB:85:37:C6:A2:78","authorityKeyIdentifier":"1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB","authorityInfoAccess":"CA Issuers - URI:http://yr1.i.lencr.org/","subjectAltName":"DNS:exploratorium.edu","certificatePolicies":"Policy: 2.23.140.1.2.1","crlDistributionPoints":"Full Name:\n  URI:http://yr1.c.lencr.org/1.crl\n","ct_precert_scts":"Signed Certificate Timestamp:\n    Version   : v1 (0x0)\n    Log ID    : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:\n                F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7\n    Timestamp : Sep 12 07:46:46.291 2026 GMT\n    Extensions: none\n    Signature : ecdsa-with-SHA256\n                30:45:02:21:00:E9:2E:21:6E:46:91:0D:11:38:6C:77:\n                A9:E3:2F:C5:4B:D8:4E:BD:26:95:70:7E:10:4B:63:8D:\n                BD:F2:B3:FF:99:02:20:4C:67:8A:81:83:66:BE:11:E9:\n                1B:34:FF:0E:83:83:76:24:83:77:49:E2:7D:A4:AD:14:\n                8B:07:CE:C5:91:50:EA\nSigned Certificate Timestamp:\n    Version   : v1 (0x0)\n    Log ID    : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0:\n                D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F\n    Timestamp : Sep 12 07:46:46.352 2026 GMT\n    Extensions: 00:00:05:00:2C:08:48:A8\n    Signature : ecdsa-with-SHA256\n                30:45:02:21:00:FB:A0:26:3D:44:8D:A1:0A:F9:1C:93:\n                DE:28:3B:EE:BD:E6:D7:85:DB:93:85:7B:92:B4:EC:A3:\n                BB:35:87:D2:D0:02:20:68:BC:EC:C1:CB:8B:D7:F5:B8:\n                BD:AE:47:21:17:D4:C9:BC:EF:04:B8:31:AF:6A:93:E5:\n                86:40:E5:90:02:96:86"},"pem":"-----BEGIN CERTIFICATE-----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\nrwKmKj1mVGzcJftj4fDgxalxnIJyAy23+vUG/5t5WA==\n-----END CERTIFICATE-----\n"},"chain":[{"subject":{"C":"US","O":"Let's Encrypt","CN":"YR1"},"issuer":{"C":"US","O":"ISRG","CN":"Root YR"},"serial":"A20253F15F2691C05DC1CE13B9BCCA4E","version":3,"valid_from":"2025-09-03T00:00:00+00:00","valid_to":"2028-09-02T23:59:59+00:00","validity":"valid_period","days_remaining":709,"san":"","signature":"RSA-SHA256","sha256":"13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F","key_type":"RSA","key_bits":2048,"curve":null,"extensions":{"keyUsage":"Digital Signature, Certificate Sign, CRL Sign","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:TRUE, pathlen:0","subjectKeyIdentifier":"1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB","authorityKeyIdentifier":"DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94","authorityInfoAccess":"CA Issuers - URI:http://yr.i.lencr.org/","certificatePolicies":"Policy: 2.23.140.1.2.1","crlDistributionPoints":"Full Name:\n  URI:http://yr.c.lencr.org/\n"},"pem":"-----BEGIN CERTIFICATE-----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\n-----END CERTIFICATE-----\n"},{"subject":{"C":"US","O":"ISRG","CN":"Root YR"},"issuer":{"C":"US","O":"Internet Security Research Group","CN":"ISRG Root X1"},"serial":"F24B6D17F9D9AD7CB1C9FEA78782699F","version":3,"valid_from":"2026-05-13T00:00:00+00:00","valid_to":"2032-09-02T23:59:59+00:00","validity":"valid_period","days_remaining":2170,"san":"","signature":"RSA-SHA256","sha256":"07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76","key_type":"RSA","key_bits":4096,"curve":null,"extensions":{"keyUsage":"Certificate Sign, CRL Sign","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:TRUE","subjectKeyIdentifier":"DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94","authorityKeyIdentifier":"79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E","authorityInfoAccess":"CA Issuers - URI:http://x1.i.lencr.org/","certificatePolicies":"Policy: 2.23.140.1.2.1","crlDistributionPoints":"Full Name:\n  URI:http://x1.c.lencr.org/\n"},"pem":"-----BEGIN CERTIFICATE-----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\nyDFx8r7i9vIJU5HS3moZLkYWAOilMaV9N56A9Bgb6dNcHkvg3NoaYA==\n-----END CERTIFICATE-----\n"}],"protocol":"TLSv1.3","cipher":"TLS_AES_128_GCM_SHA256","cipher_bits":128,"warnings":[],"attempts":[{"address":"23.185.0.1","verified":true,"error":null}],"checked_at":"2026-09-24T20:56:54+00:00","resolver":"Public DNS resolver","scope":"One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan."}