Checks the revocation status of digital certificates using both Online Certificate Status Protocol (OCSP) responders and Certificate Revocation Lists (CRLs). Users input a certificate, and the tool extracts necessary endpoints to query the issuing authority regarding whether the certificate remains valid. It communicates with these services to determine if the certificate has been explicitly revoked before its natural expiration date, providing a critical layer of security validation for digital identities.
Security professionals, developers integrating authentication systems, and anyone handling sensitive encrypted data utilize this checker. Verifying revocation status ensures that an attacker cannot use a compromised or expired certificate to impersonate a legitimate entity.