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SSL API - Certificate Lookup & Chain Validation

🚀 Getting Started

Access comprehensive SSL certificate information for any domain through simple API endpoints. Retrieve detailed certificate data including validity periods, serial numbers, signature algorithms, subject and issuer details, public key information, and certificate extensions. Whether you're monitoring SSL certificate expiration, verifying certificate authenticity, conducting security audits, or building domain intelligence tools, these endpoints provide the complete SSL data needed for robust certificate management and security monitoring across your infrastructure or client domains.

Go deeper with full certificate chain retrieval from the root Certificate Authority (CA) down to the end-user certificate. Understand the complete trust chain, verify intermediate certificates, analyze certificate hierarchies, and ensure proper SSL implementation. The structured JSON responses include extensive details like key usage extensions, subject alternative names (SANs) covering DNS names and IP addresses, CRL distribution points, OCSP responders, and certificate policies. Perfect for security teams monitoring certificate health, DevOps automating SSL management, compliance officers auditing certificate configurations, and developers building SSL verification into applications. Track certificate expiration dates, validate certificate authorities, inspect encryption algorithms, and ensure your domains maintain proper SSL security standards.

Key Features:

  • 🔍 Retrieve comprehensive SSL certificate information including validity dates, serial numbers, signature algorithms, and authentication types for any domain.
  • 🔗 Access the full SSL certificate chain from root CA to end-user certificate, including all intermediate certificates for complete trust verification.
  • ✅ Verify SSL certificate authenticity, check validity periods, and ensure certificates are properly configured and not expired.
  • 🏢 Get detailed information about certificate issuers and subjects including organization, locality, state, country, and organizational units.
  • 🔑 Access public key details including key size, algorithm type, and PEM-encoded raw data for cryptographic analysis.
  • 📋 Retrieve all certificate extensions including key usage, extended key usage, subject alternative names, and CRL distribution points.
  • 🌐 View all SANs including DNS names, IP addresses, email addresses, and URIs covered by the certificate for multi-domain verification.
  • 🏛️ Access CA information including authority key identifiers, issuer details, and certificate policy information for trust chain analysis.

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