{"domain":"witlayer.cn","port":443,"address":"104.21.89.43","resolved_addresses":["104.21.89.43","172.67.156.89","2606:4700:3035::ac43:9c59","2606:4700:3030::6815:592b"],"verified":true,"verification":"Certificate chain, hostname and dates verified using this server\u2019s CA store.","verification_error":null,"certificate":{"subject":{"CN":"witlayer.cn"},"issuer":{"C":"US","O":"Google Trust Services","CN":"WE1"},"serial":"A3A651FDE4F14AB80E92930FCD9A5622","version":3,"valid_from":"2026-10-15T10:11:15+00:00","valid_to":"2027-01-13T11:10:02+00:00","validity":"valid_period","days_remaining":88,"san":"DNS:witlayer.cn, DNS:*.witlayer.cn","signature":"ecdsa-with-SHA256","sha256":"21:21:27:25:A7:2C:72:07:4E:1F:13:71:0D:45:B3:86:AB:58:FF:10:05:FD:AE:97:A1:1B:73:EA:65:4A:10:FF","key_type":"EC","key_bits":256,"curve":"prime256v1","extensions":{"keyUsage":"Digital Signature","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:FALSE","subjectKeyIdentifier":"8D:32:8B:72:9C:B4:C3:01:F2:6D:AB:65:88:E1:6C:A3:4D:81:BE:FE","authorityKeyIdentifier":"90:77:92:35:67:C4:FF:A8:CC:A9:E6:7B:D9:80:79:7B:CC:93:F9:38","authorityInfoAccess":"CA Issuers - 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URI:http://i.pki.goog/gsr1.crt","crlDistributionPoints":"Full Name:\n  URI:http://c.pki.goog/r/gsr1.crl\n","certificatePolicies":"Policy: 2.23.140.1.2.1"},"pem":"-----BEGIN CERTIFICATE-----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\nvepuoxtGzi4CZ68zJpiq1UvSqTbFJjtbD4seiMHl\n-----END CERTIFICATE-----\n"}],"protocol":"TLSv1.3","cipher":"TLS_AES_128_GCM_SHA256","cipher_bits":128,"warnings":[],"attempts":[{"address":"104.21.89.43","verified":true,"error":null}],"checked_at":"2026-10-17T10:34:40+00:00","resolver":"Public DNS resolver","scope":"One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan."}