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SSL/TLS Protocol Analyzer

Analyze SSL/TLS protocol configuration and supported protocols

About SSL/TLS Protocol Analyzer

Our free SSL/TLS Protocol Analyzer examines your server's protocol configuration, supported TLS versions, cipher suites, key exchange mechanisms, and authentication methods. Identifies outdated protocols and weak cipher configurations to help you maintain a strong security posture.

How to Use

  1. Enter the domain name of the server you want to analyze
  2. Click "Analyze" to perform a full protocol and cipher suite scan
  3. Review supported protocols, cipher components, and any vulnerabilities found

Use Cases

  • •Protocol compliance checking for regulatory requirements
  • •TLS version auditing to ensure only secure protocols are enabled
  • •Security posture assessment during penetration testing

Frequently Asked Questions

For maximum security, enable TLS 1.2 and TLS 1.3 only. TLS 1.0 and TLS 1.1 are deprecated and considered insecure. SSL 2.0 and SSL 3.0 should never be enabled under any circumstances.
A cipher suite is a combination of key exchange, authentication, encryption, and MAC algorithms used in TLS connections. Strong cipher suites use AEAD encryption like AES-GCM or ChaCha20-Poly1305 with ECDHE key exchange for forward secrecy.
Forward secrecy (using ECDHE key exchange) ensures that session encryption keys cannot be compromised even if the server's private key is later exposed. Each session uses unique ephemeral keys, so past communications remain secure even with key compromise.

Tips & Best Practices

  • •Use protocol analysis to understand TLS connection behavior
  • •Analyze protocol negotiation to diagnose compatibility issues
  • •Compare protocol analysis across different client configurations
  • •Document protocol analysis for security assessment evidence

Technical Details

Analysis: TLS protocol message flow and parameter analysis
Messages: Handshake, alert, application data, and change cipher spec
Debug: Protocol-level debugging and error identification
Output: Protocol analysis with message flow visualization

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