{"tool":"SSL Expiry Checker","domain":"github.com","checked_at":"2026-10-18T12:21:52+00:00","result":{"host":"github.com","is_valid":true,"issuer":"C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV E36","valid_from":1788220800,"valid_to":1795996799,"days_remaining":42,"message":"Certificate is valid (42 days remaining).","common_name":"github.com","san":["DNS:github.com","DNS:www.github.com"],"subject_organization":null,"subject_organizational_unit":null,"subject_country":null,"subject_state":null,"subject_locality":null,"issuer_common_name":"Sectigo Public Server Authentication CA DV E36","issuer_organization":"Sectigo Limited","issuer_country":"GB","tls_version":"TLSv1.3","cipher_suite":"TLS_AES_128_GCM_SHA256","signature_algorithm":"ecdsa-with-SHA256","public_key_algorithm":"ECDSA","public_key_bits":256,"serial_number":"A59EBDB596751DB7F5C095079613953C","sha1_fingerprint":"d3b63e61c64fd29ba9b8729628f8697f556a341f","sha256_fingerprint":"46b601ee08b418cf8a3a1ebfe670ba5ce43bb05a917fa8b2dd087a30471cfc63","certificate_type":"Domain Validation (DV)","certificate_status":"Active","chain_status":"Complete (3 certificates)","chain_complete":true,"chain":[{"subject":"github.com","issuer":"Sectigo Public Server Authentication CA DV E36","valid_from":1788220800,"valid_to":1795996799,"signature_algorithm":"ecdsa-with-SHA256"},{"subject":"Sectigo Public Server Authentication CA DV E36","issuer":"Sectigo Public Server Authentication Root E46","valid_from":1616371200,"valid_to":2089756799,"signature_algorithm":"ecdsa-with-SHA384"},{"subject":"Sectigo Public Server Authentication Root E46","issuer":"USERTrust ECC Certification Authority","valid_from":1616371200,"valid_to":2147471999,"signature_algorithm":"ecdsa-with-SHA384"}],"hostname_matched":true,"browser_trusted":true,"server_ip":"20.207.73.82","reverse_dns":null,"server_software":"github.com"}}