Goes beyond a SYN scan — performs the real protocol handshake to confirm whether a service is genuinely reachable, or whether an application-layer firewall is silently blocking it.
8.8.8.8 or host.example.com ·
CIDR — 1.2.3.0/24 (max /24) ·
List — up to 50 hosts, one per line. Public targets only.
| Protocol | Port | Verdict | Detail |
|---|---|---|---|
| Enter a target to begin. | |||