NodeBuf
Node Connectivity Check

Node Connectivity Check

Paste node URIs or Base64 subscription content to batch-check TCP connectivity, connect latency, and TLS handshake status. Results are useful for entry health checks, not real speed testing or final proxy usability.

Server-side checkTCP + TLSOne by oneWaiting

What it can answer

Useful for filtering nodes with closed ports, timeouts, refused connections, or obvious TLS issues.

It is not a real speed test

The value shown here is server-to-target TCP connect time, not proxy download speed.

It does not prove final usability

It does not fully validate vmess, vless, trojan, or ss auth, transport parameters, or outbound access.

Instructions:Node Connectivity Check

Notes

  • Accepts vmess://, vless://, trojan://, and ss:// nodes, plus common Base64 subscription bodies.
  • Nodes are parsed with @changfengoss/v2rayse-helper, then sent to the server one by one for TCP connectivity checks and TLS handshake checks.
  • The current results are useful for answering:
    • whether the target port is reachable
    • whether server-to-entry TCP connects time out, get refused, or look unstable
    • whether TLS handshake succeeds and whether certificate issuer or expiry looks suspicious
  • The current results do not directly answer:
    • the node’s real download speed or final throughput
    • whether it behaves the same from your local network
    • whether vmess / vless / trojan / ss can complete full protocol validation
    • whether ws / grpc / reality / auth / outbound access all work correctly
  • Treat it as an entry health-check tool, not a final speed test or final usability validator.
  • All checks run server-side; the browser never connects to target nodes directly.

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