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Certificate Search

This section documents the structure and fields available in TLS certificate data. Each certificate record contains comprehensive metadata including subject and issuer information, validity periods, cryptographic details, and security extensions.

Searchable Fields

The following fields can only be searched on the Professional, Enterprise, and Ultimate plans.

Field NameTypeField semantics, features, & notes
authority.key_idtextUnique identifier of the CA's signing key
ext_key_usagetextExtended key usage restrictions and permitted applications
issuer.ctextTwo-letter ISO country code of the Certificate Authority
issuer.cnkeywordCommon name of the Certificate Authority that issued the certificate
issuer.dnkeywordComplete distinguished name of the Certificate Authority
issuer.okeywordOrganization name of the Certificate Authority
issuer.oukeywordOrganizational unit within the Certificate Authority
key_usagetextPermitted cryptographic operations for the certificate's key
pubkey.algotextPublic key algorithm type (RSA, ECDSA, etc.)
pubkey.sha256textSHA256 fingerprint of the certificate's public key
sans.dnskeywordDNS names in SAN extension
sans.dns_countintegerNumber of DNS names listed in the Subject Alternative Names extension
sha1textSHA1 hash fingerprint of the entire certificate
sha256textSHA256 hash fingerprint of the entire certificate
sha256_tbs_nocttextSHA256 hash of the certificate's To-Be-Signed portion excluding Certificate Transparency extensions
signature_algotextCryptographic algorithm used to sign the certificate
sourcetextOrigin or collection method used to obtain the certificate
subject.ctextTwo-letter ISO country code of the certificate subject
subject.cnkeywordCommon name, typically the domain name or entity identifier
subject.dnkeywordComplete distinguished name containing all subject identity attributes
subject.key_idtextUnique identifier for the subject's public key
subject.ltextLocality or city name of the certificate subject
subject.okeywordOrganization name that owns the certificate
subject.sttextState or province name of the certificate subject
tagstextMetadata labels or categories applied to the certificate record
valid.daysintegerNumber of days the certificate is valid for
valid.fromdatetimeStart date and time when the certificate becomes valid
valid.secondsintegerNumber of seconds the certificate remains valid
valid.todatetimeEnd date and time when the certificate expires