What does this check?

It checks whether one TCP port is reachable on an authorized public host.

Can I check any host?

No. Use only on hosts you own or are authorized to test.

Localhost, private networks, link-local addresses, metadata endpoints, and internal targets are blocked to reduce abuse and SSRF risk.

No. It is a point-in-time connectivity signal, not a vulnerability finding.

No. Firewall rules, routing, provider settings, and service configuration can change results.

The check runs from DaivVerse servers with rate limits, target restrictions, and verification requirements.

Results may vary by firewall, hosting provider, rate limits, network path, and target configuration.

Check whether one TCP port is reachable on a host you own or are authorized to test.

Host

Port

I own this host or am authorized to test it.

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