{
  "id": "ping",
  "slug": "tcp-port-check",
  "title": "TCP Port Check (Ping)",
  "description": "Check if a TCP port on a public host is open and measure connection latency.",
  "category": "networking",
  "tags": ["ping", "tcp", "port", "check", "latency"],
  "icon": "activity",
  "needsBackend": true,
  "relatedModules": ["dns-lookup"],
  "seoIntro": "Test whether a TCP port on a public host is reachable and measure connection time. Because ICMP is not available on shared hosting, this tool performs a TCP connect to common ports (HTTP, HTTPS, SSH, SMTP, etc.). Hostnames are resolved server-side and private addresses are rejected.",
  "seoFaq": [
    { "q": "Why TCP and not ICMP?", "a": "Standard ping uses ICMP, which requires elevated privileges not available on shared hosting. A TCP connect provides a similar 'is it up?' answer for any chosen port." },
    { "q": "Why are some hosts blocked?", "a": "Private/internal addresses and metadata endpoints are blocked to prevent abuse." }
  ]
}