CRL Checker
Analyze Certificate Revocation Lists for expiration, validity, and revoked certificates
Analyze Certificate Revocation Lists
Check CRL expiration dates, view revoked certificates, and monitor CRL health. Get real-time countdowns and visual timelines for CRL updates.
Enter a direct URL to a Certificate Revocation List
Supported input methods:
- Direct CRL URL: Fetch CRL directly from a URL
- Paste CRL: Paste PEM format or base64 encoded CRL content
What we analyze:
- CRL expiration dates and validity periods
- Real-time countdown to next CRL update
- Visual timeline of CRL lifecycle
- List of revoked certificates with details
- CRL signature validation and issuer verification
- Revocation reasons and patterns analysis
- CRL health and update frequency recommendations
Certificate Revocation List Analysis
Our CRL analyzer provides comprehensive analysis of Certificate Revocation Lists, helping you monitor certificate revocation status and CRL health.
CRL Validation & Health
Expiration Monitoring
Real-time countdown to CRL expiration with visual timeline and warning indicators. Best Practice: Monitor CRLs regularly to ensure they're updated before expiration.
Signature Validation
Validates CRL signature and issuer information to ensure authenticity and integrity. Best Practice: Only trust CRLs from verified Certificate Authorities.
Update Frequency Analysis
Analyzes CRL update patterns and provides recommendations for optimal update frequency. Best Practice: Regular CRL updates ensure timely revocation information.
Revocation Analysis
Revoked Certificate Listing
Complete list of revoked certificates with serial numbers, revocation dates, and reasons. Best Practice: Regularly check if your certificates appear on CRLs.
Revocation Reason Analysis
Analyzes revocation reasons to identify patterns and potential security issues. Best Practice: Monitor revocation reasons for security insights.
Certificate Lookup
Search functionality to quickly find specific certificates in the revocation list. Best Practice: Verify certificate status before trusting.
CRL Input Methods
Direct CRL URL
Fetch CRL directly from a URL. Supports both HTTP and HTTPS endpoints with DER or PEM encoding.
Paste CRL Data
Paste base64 encoded CRL content directly, with or without PEM headers.