{"domain":"optk.com","port":443,"address":"35.208.22.241","resolved_addresses":["35.208.22.241"],"verified":true,"verification":"Certificate chain, hostname and dates verified using this server\u2019s CA store.","verification_error":null,"certificate":{"subject":{"CN":"optk.com"},"issuer":{"C":"US","O":"Let's Encrypt","CN":"YR1"},"serial":"0693A9CE21CFDFC4D2F556AADD7DD5753329","version":3,"valid_from":"2026-10-06T02:13:44+00:00","valid_to":"2027-01-04T02:13:43+00:00","validity":"valid_period","days_remaining":85,"san":"DNS:optk.com, DNS:www.optk.com","signature":"RSA-SHA256","sha256":"36:85:A8:1F:5E:0A:1F:38:2F:EE:C0:27:F8:43:3A:D0:CD:93:87:95:B8:19:CE:E8:32:0E:EB:C2:04:DE:6C:9C","key_type":"RSA","key_bits":2048,"curve":null,"extensions":{"keyUsage":"Digital Signature, Key Encipherment","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:FALSE","subjectKeyIdentifier":"3F:B4:7A:11:A3:CC:51:F0:07:BA:4E:52:6D:0B:2E:36:45:98:B8:F7","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:optk.com, DNS:www.optk.com","certificatePolicies":"Policy: 2.23.140.1.2.1","crlDistributionPoints":"Full Name:\n  URI:http://yr1.c.lencr.org/42.crl\n","ct_precert_scts":"Signed Certificate Timestamp:\n    Version   : v1 (0x0)\n    Log ID    : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F:\n                AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26\n    Timestamp : Oct  6 03:12:14.994 2026 GMT\n    Extensions: none\n    Signature : ecdsa-with-SHA256\n                30:46:02:21:00:9E:35:2E:53:07:12:C1:9B:69:29:A8:\n                1F:13:49:D9:28:00:0C:F3:94:46:EA:D1:14:B8:A7:1D:\n                C7:05:FB:FB:F7:02:21:00:D7:F2:DE:0B:0E:51:04:34:\n                E9:52:83:E6:DA:2E:7B:AD:E4:94:68:7A:97:33:BF:52:\n                4D:FE:BB:11:6F:48:B8:46\nSigned Certificate Timestamp:\n    Version   : v1 (0x0)\n    Log ID    : 44:E8:22:FC:2B:AB:0E:92:EE:D0:E9:FA:D6:96:64:60:\n                27:76:D0:17:60:E0:89:05:09:C9:23:A1:B0:3F:C3:7F\n    Timestamp : Oct  6 03:12:12.223 2026 GMT\n    Extensions: 00:00:05:00:07:29:81:E8\n    Signature : ecdsa-with-SHA256\n                30:45:02:20:7F:FB:AC:18:C0:5C:44:01:AF:2D:37:86:\n                42:F5:7A:93:9B:ED:A8:07:C4:61:EA:B7:0A:CD:28:9A:\n                09:89:FE:7E:02:21:00:D4:C5:DC:AF:AA:9F:79:9A:C9:\n                F7:42:84:1E:A0:E5:BA:80:6A:01:3B:76:28:EC:1E:80:\n                CE:1D:CE:0F:A8:71:80"},"pem":"-----BEGIN CERTIFICATE-----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\nQCaGvznc8bs0bzDx67nKr4jnlE1JZIZ/NWxzstY=\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":693,"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 - 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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-----\nMIIF9DCCA9ygAwIBAgIRAPJLbRf52a18scn+p4eCaZ8wDQYJKoZIhvcNAQELBQAw\nTzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh\ncmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjYwNTEzMDAwMDAw\nWhcNMzIwOTAyMjM1OTU5WjAuMQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQ\nMA4GA1UEAxMHUm9vdCBZUjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIB\nANvGJnN78CTJdWL3+eGfsLN5TrNBJs+VH9hRXqRbwxu9sGNiB0BD1fcOxbSUQCJI\nM1xE13Db+5Cw1w0s0EBYsvuIP/6joF0w8cuImbgR1OGgYbSQ4OpzI+DG8SGuTlcE\n873OCS+kh3srlo6vl43M5OJg4Aeo1sfHp6kTJDoIiFBNJAY+OKfX/FUvYKuhjT+n\no49lmqmupSBI5PkBQiqrEGtWU5uxU/cQWHGu8jSjFBznZqvbNPLMXMLFxCb3WTfr\nJBXXjqvWG+v4bjzxjjeAtOlU7qarRDvNOyAuQYLln904M+faKx8hnLCpJ15ZqaEg\ncNlY+9MMWcC5yvL2A2j3l9+2buggZX+dOE91zYmIdawTvSZuVvlbRrAlLxIB6pwM\nBjneXCjYQ8+3BCCjssbSNpZU3hTcBDdhfAlEDlYr6pEatnMdmDT5BqnKC92bd0Eh\nM1fbLHioLccLCuievT8ZkPhZrq7Mii7gNXAcUEAR8+lzYal+9zTg7C5DALyVOeG/\nCqfRAMn1KSHCR0NSA6P8tn/mGRlnCct5rtVCLnVySVpU6H1qGg3DgTOuskf8eahT\nMiYbI5ezPJmO5ertalskQ1utp74+eDy92PI4ftHKTbq9IWhH4YZKh3WnJEIt+oQv\nlYZbY8tpEroKrFB6PFGzrJIDRyts4HqvuH52RFj2zv/BAgMBAAGjgeswgegwDgYD\nVR0PAQH/BAQDAgEGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdEwEB/wQFMAMB\nAf8wHQYDVR0OBBYEFN7nW2DQIm1AKH0/DQH+pLVStFGUMB8GA1UdIwQYMBaAFHm0\nWeZ7tuXkAXOACIjIGlj26ZtuMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEFBQcwAoYW\naHR0cDovL3gxLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAECATAnBgNV\nHR8EIDAeMBygGqAYhhZodHRwOi8veDEuYy5sZW5jci5vcmcvMA0GCSqGSIb3DQEB\nCwUAA4ICAQA8spSI95KKfn2W6GMmDpHBJSPaLbsS3W93cijJCRCYAc1fsJgL1FIL\n7C0C9ecPOdcwB2fi0Dk2p94j9iTJCxmt5CFSKLRWwnXT2MMSXexVxqoVB79BdWPx\nVXETkVme/qYSAuKVHh5Ps+5BixgmwS1JkjSAc+MfrUbNssVEEnH0aEiAh+rotXAV\nJSP/Ye7LJPEwD9DWG72vVWbhAcuOf5OLjz57Ctk7MgQHynZ7+PlHJtajroCaIbtC\nr6tcZZaAwUQm+jQyeWdV+2hv9deOYFmKeQyjjcSrN5Nadrw+L9DZJLbA1HqeNvLh\nBgqpP0fvJq2N6EtD574N6eMI7uMsJTnji2UDz9el5XLSv9fqJMuDQtYVb2oTNoKp\noUqhxPVC0aq4eG5MESaIdn8b5ZGSSeAJLMHXljEdlNza+ncfkviXk1POLnnFdvx8\n/gk6M374WbLWFXw8N141B/Rl/tINGfl1TxOIiqtiMYkL02RSGb1kq34BL9NPP27z\nRGMuHGnzS3hFIrRTfKxrzUZ9RzQWzEG3K6fJ3r2nqSltkeytis9DIBoFY9VmVyjL\nM71DMi+y1+TRSJVClEMwvA4yL++7q9XZx5r5wBRWB4kQTKH5qyoZnDw7iiuh1lID\nyDFx8r7i9vIJU5HS3moZLkYWAOilMaV9N56A9Bgb6dNcHkvg3NoaYA==\n-----END CERTIFICATE-----\n"}],"protocol":"TLSv1.3","cipher":"TLS_AES_256_GCM_SHA384","cipher_bits":256,"warnings":[],"attempts":[{"address":"35.208.22.241","verified":true,"error":null}],"checked_at":"2026-10-10T18:42:14+00:00","resolver":"Public DNS resolver","scope":"One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan."}