TLS Handshake Trace
{{ summaryProtocol || '—' }}
Cipher {{ summaryCipher }} Handshake summary
{{ hostDisplay }} ALPN {{ summaryAlpn }} CN {{ summaryPeerCN }} {{ resultMethod }} Truncated output 
{{ outputText }}
Field Value Copy
{{ r.k }} {{ r.v }}
No summary. 

                

            


        

    

                

                

                    

                        

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TLS Handshake Trace

  
Connect to a host:port and capture a TLS handshake transcript with protocol, cipher, ALPN, and certificate chain details. Use verbose modes when you need more context for debugging.


  
Notes

  
    
    
  • Trace output can be large; the helper may truncate output to keep the response responsive.
    • 
    
  • For IP addresses, SNI is disabled unless you provide an override.
    • 
    
  • This tool uses Node TLS to collect handshake details and certificate metadata.
    •