{"domain":"kt.com","port":443,"address":"14.63.149.115","resolved_addresses":["14.63.149.115"],"verified":true,"verification":"Certificate chain, hostname and dates verified using this server\u2019s CA store.","verification_error":null,"certificate":{"subject":{"C":"KR","ST":"Gyeonggi-do","O":"KT Corporation","CN":"kt.com"},"issuer":{"C":"GB","ST":"Greater Manchester","L":"Salford","O":"Sectigo Limited","CN":"Sectigo RSA Organization Validation Secure Server CA"},"serial":"2392095D7A6239E2342F57E6AB87CF5E","version":3,"valid_from":"2025-10-20T00:00:00+00:00","valid_to":"2026-11-20T23:59:59+00:00","validity":"valid_period","days_remaining":61,"san":"DNS:kt.com, DNS:www.kt.com","signature":"RSA-SHA256","sha256":"B3:9A:DF:6E:B5:A4:09:7C:7B:39:77:9C:D8:3A:86:8C:58:26:55:60:76:C0:AE:30:CF:4B:8D:EC:94:54:C8:40","key_type":"RSA","key_bits":2048,"curve":null,"extensions":{"authorityKeyIdentifier":"17:D9:D6:25:27:67:F9:31:C2:49:43:D9:30:36:44:8C:6C:A9:4F:EB","subjectKeyIdentifier":"11:4A:C6:AD:DA:8B:0F:7C:A2:4D:32:EE:1D:25:F7:95:AD:CF:9C:30","keyUsage":"Digital Signature, Key Encipherment","basicConstraints":"CA:FALSE","extendedKeyUsage":"TLS Web Server Authentication, TLS Web Client Authentication","certificatePolicies":"Policy: 1.3.6.1.4.1.6449.1.2.1.3.4\n  CPS: https://sectigo.com/CPS\nPolicy: 2.23.140.1.2.2","crlDistributionPoints":"Full Name:\n  URI:http://crl.sectigo.com/SectigoRSAOrganizationValidationSecureServerCA.crl\n","authorityInfoAccess":"CA Issuers - URI:http://crt.sectigo.com/SectigoRSAOrganizationValidationSecureServerCA.crt\nOCSP - URI:http://ocsp.sectigo.com","subjectAltName":"DNS:kt.com, DNS:www.kt.com","ct_precert_scts":"Signed Certificate Timestamp:\n    Version   : v1 (0x0)\n    Log ID    : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB:\n                B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14\n    Timestamp : Oct 20 01:27:24.904 2025 GMT\n    Extensions: none\n    Signature : ecdsa-with-SHA256\n                30:45:02:20:06:63:3E:B5:7B:1F:54:F7:56:34:5F:89:\n                3C:13:66:1A:9F:0B:72:29:2C:DB:2E:3E:0B:E2:0E:5A:\n                B9:DD:C9:14:02:21:00:E3:C3:2E:4B:0C:F9:4B:4B:1D:\n                B9:EC:FD:EE:3E:B1:A3:02:95:19:C1:C4:4B:63:CE:34:\n                27:38:85:A7:B7:08:C3\nSigned Certificate Timestamp:\n    Version   : v1 (0x0)\n    Log ID    : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB:\n                81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A\n    Timestamp : Oct 20 01:27:24.987 2025 GMT\n    Extensions: none\n    Signature : ecdsa-with-SHA256\n                30:45:02:20:21:8A:54:F3:E8:82:C3:F2:25:BA:37:6A:\n                C4:C6:0B:7D:00:A3:E5:F2:25:B3:8D:2D:B6:44:5B:16:\n                F3:F9:37:24:02:21:00:A2:02:55:0B:9B:84:ED:9A:6D:\n                BA:27:7B:65:1A:D6:01:77:F0:7A:1F:01:E8:87:C5:55:\n                AF:6A:13:34:DD:5F:A5\nSigned Certificate Timestamp:\n    Version   : v1 (0x0)\n    Log ID    : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11:\n                1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3\n    Timestamp : Oct 20 01:27:25.036 2025 GMT\n    Extensions: none\n    Signature : ecdsa-with-SHA256\n                30:46:02:21:00:B4:C5:C6:B2:D5:5E:44:AD:92:F4:F0:\n                4F:89:D3:AC:5A:B6:6D:5C:4B:36:07:10:77:A2:09:6B:\n                7F:3B:CE:6E:F7:02:21:00:A2:F2:50:20:90:13:10:CE:\n                81:E8:D3:6D:09:FD:35:76:5A:27:A2:55:A2:56:57:41:\n                99:8B:98:2D:57:96:15:FD"},"pem":"-----BEGIN 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CERTIFICATE-----\n"},"chain":[{"subject":{"C":"GB","ST":"Greater Manchester","L":"Salford","O":"Sectigo Limited","CN":"Sectigo RSA Organization Validation Secure Server CA"},"issuer":{"C":"US","ST":"New Jersey","L":"Jersey City","O":"The USERTRUST Network","CN":"USERTrust RSA Certification Authority"},"serial":"137D539CAA7C31A9A433701968847A8D","version":3,"valid_from":"2018-11-02T00:00:00+00:00","valid_to":"2030-12-31T23:59:59+00:00","validity":"valid_period","days_remaining":1563,"san":"","signature":"RSA-SHA384","sha256":"72:A3:4A:C2:B4:24:AE:D3:F6:B0:B0:47:55:B8:8C:C0:27:DC:CC:80:6F:DD:B2:2B:4C:D7:C4:77:73:97:3E:C0","key_type":"RSA","key_bits":2048,"curve":null,"extensions":{"authorityKeyIdentifier":"53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB","subjectKeyIdentifier":"17:D9:D6:25:27:67:F9:31:C2:49:43:D9:30:36:44:8C:6C:A9:4F:EB","keyUsage":"Digital Signature, Certificate Sign, CRL Sign","basicConstraints":"CA:TRUE, pathlen:0","extendedKeyUsage":"TLS Web Server 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CERTIFICATE-----\n"},{"subject":{"C":"US","ST":"New Jersey","L":"Jersey City","O":"The USERTRUST Network","CN":"USERTrust RSA Certification Authority"},"issuer":{"C":"US","ST":"New Jersey","L":"Jersey City","O":"The USERTRUST Network","CN":"USERTrust RSA Certification Authority"},"serial":"01FD6D30FCA3CA51A81BBC640E35032D","version":3,"valid_from":"2010-02-01T00:00:00+00:00","valid_to":"2038-01-18T23:59:59+00:00","validity":"valid_period","days_remaining":4138,"san":"","signature":"RSA-SHA384","sha256":"E7:93:C9:B0:2F:D8:AA:13:E2:1C:31:22:8A:CC:B0:81:19:64:3B:74:9C:89:89:64:B1:74:6D:46:C3:D4:CB:D2","key_type":"RSA","key_bits":4096,"curve":null,"extensions":{"subjectKeyIdentifier":"53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB","keyUsage":"Certificate Sign, CRL Sign","basicConstraints":"CA:TRUE"},"pem":"-----BEGIN 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CERTIFICATE-----\n"}],"protocol":"TLSv1.3","cipher":"TLS_AES_128_GCM_SHA256","cipher_bits":128,"warnings":[],"attempts":[{"address":"14.63.149.115","verified":true,"error":null}],"checked_at":"2026-09-20T12:05:27+00:00","resolver":"Google Public DNS","scope":"One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan."}