{"domain":"fastly.com","port":443,"address":"151.101.193.57","resolved_addresses":["151.101.193.57","151.101.65.57","151.101.1.57","151.101.129.57","2a04:4e42::313","2a04:4e42:200::313","2a04:4e42:400::313","2a04:4e42:600::313"],"verified":true,"verification":"Certificate chain, hostname and dates verified using this server\u2019s CA store.","verification_error":null,"certificate":{"subject":{"CN":"www.fastly.com"},"issuer":{"C":"US","O":"Certainly","CN":"Certainly Intermediate R1"},"serial":"78F935A7B2CF05EA354228B5318077BF9A13","version":3,"valid_from":"2026-10-24T16:48:18+00:00","valid_to":"2026-11-23T16:48:17+00:00","validity":"expiring_soon","days_remaining":15,"san":"DNS:developer.fastly.com, DNS:fastly.com, DNS:www.fastly.com","signature":"RSA-SHA256","sha256":"20:17:1D:B4:62:DF:2F:F3:15:02:3C:92:2E:EA:A8:65:C0:A9:17:13:53:E9:52:05:50:21:3C:0F:B4:D8:62:2C","key_type":"RSA","key_bits":2048,"curve":null,"extensions":{"keyUsage":"Digital Signature, Key Encipherment","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:FALSE","subjectKeyIdentifier":"71:59:A5:B1:A0:34:E3:69:BE:59:F0:4B:19:64:F9:8A:4C:DD:AC:85","authorityKeyIdentifier":"BD:97:9D:DF:A1:D8:1B:25:99:E3:0C:04:06:89:64:12:D7:65:24:C7","authorityInfoAccess":"CA Issuers - 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G2"},"serial":"11831CDE4CB573E5","version":3,"valid_from":"2022-06-22T00:00:00+00:00","valid_to":"2032-06-21T23:59:59+00:00","validity":"valid_period","days_remaining":2053,"san":"","signature":"RSA-SHA256","sha256":"FE:C4:1E:32:CA:75:C2:95:A6:24:0F:A6:39:D3:AB:E3:BF:B5:CB:13:1D:66:90:E2:33:1A:17:6B:ED:2E:5B:D2","key_type":"RSA","key_bits":2048,"curve":null,"extensions":{"basicConstraints":"CA:TRUE, pathlen:0","keyUsage":"Digital Signature, Certificate Sign, CRL Sign","extendedKeyUsage":"TLS Web Server Authentication, TLS Web Client Authentication","subjectKeyIdentifier":"BD:97:9D:DF:A1:D8:1B:25:99:E3:0C:04:06:89:64:12:D7:65:24:C7","authorityKeyIdentifier":"7C:0C:32:1F:A7:D9:30:7F:C4:7D:68:A3:62:A8:A1:CE:AB:07:5B:27","authorityInfoAccess":"CA Issuers - URI:http://certificates.starfieldtech.com/repository/sfroot-g2.crt.cer","crlDistributionPoints":"Full Name:\n  URI:http://crl.starfieldtech.com/sfroot-g2.crl\n","certificatePolicies":"Policy: 2.23.140.1.2.1\nPolicy: 1.3.6.1.4.1.49945.1.1"},"pem":"-----BEGIN CERTIFICATE-----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\n9NEqn0ekjRmQK5UvHXoBNHVvZ1VrbMv6hlIMCt++bfb6UBoK\n-----END CERTIFICATE-----\n"}],"protocol":"TLSv1.3","cipher":"TLS_AES_128_GCM_SHA256","cipher_bits":128,"warnings":["The certificate expires within 30 days."],"attempts":[{"address":"151.101.193.57","verified":true,"error":null}],"checked_at":"2026-11-07T18:09:32+00:00","resolver":"Public DNS resolver","scope":"One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan."}