SAN (Subject Alternative Name) SSL Inspector
Extract and inspect Subject Alternative Names (SAN) from SSL/TLS certificates. View all authorized domains, subdomains, and wildcard entries.
1 How to Use SAN (Subject Alternative Name) SSL Inspector
- 1. Paste certificate.
- 2. View complete list of covered domains and wildcard entries.
⚙️ Cryptographic Specifications
- Algorithm
- X.509 SAN
- Execution Engine
- Web Cryptography API (SubtleCrypto)
- Environment
- Client Browser Sandbox
- Network Telemetry
- 0 Bytes (Zero Server Transmission)
🛡️ Security & Compliance
Enterprise developers can safely execute this tool with production secrets. Because execution takes place entirely within your browser's local V8 JavaScript runtime, no payloads are transmitted over HTTP, cached on third-party proxies, or stored in server logs.
Verified Safe for SOC2, HIPAA, and GDPR developer compliance audits.
Frequently Asked Questions
Why are SANs important?
Modern browsers ignore the Common Name (CN) and rely exclusively on SAN extension entries to validate domain names.
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