SSL/TLS ServerHello Analyzer

Analyze ServerHello responses and cipher negotiation

Analyzing ServerHello...

ServerHello Analysis

TLS Version

Selected Cipher

Cipher Bits

ALPN Protocol

Session ID

About Server Hello Analyzer

Analyzes TLS Server Hello responses to identify selected cipher suites, protocol versions, and extensions. Reveals server-side TLS configuration choices.

How to Use

1Enter your domain name and optional port number
2Click "Analyze ServerHello" to capture the response
3Review selected cipher, protocol version, and extensions

Use Cases

•Verify server TLS configuration choices
•Debug handshake issues and failures
•Compliance checking for cipher suite policies

Frequently Asked Questions

A Server Hello is the server's response during TLS handshake. It contains the selected cipher suite, TLS version, session ID, and other negotiated parameters.

Client Hello lists all supported options, while Server Hello contains the single selected option from those lists. The server picks the best mutually supported cipher suite.

Check that the selected cipher suite is secure, the TLS version is modern (1.2 or 1.3), and session resumption is configured. Use the SSL Hardening Config tool to improve weak configurations.

Tips & Best Practices

•Analyze ServerHello messages to understand server TLS configuration
•Use ServerHello analysis to verify server cipher and protocol selection
•Compare ServerHello messages from different servers for consistency
•Monitor ServerHello patterns for security configuration verification

Technical Details

Message: TLS ServerHello message structure and content analysis
Fields: Selected version, cipher suite, session ID, extensions
Selection: Server cipher and protocol selection analysis
Output: ServerHello analysis with selected parameters