Networking
Open Port Checker
See whether a TCP port is open and answering on a public host — confirm a website, camera stream, or remote-access service is exposed.
Tests whether a TCP port is reachable from our servers— useful for confirming a public service (a website, camera stream, or remote-access port) is exposed and answering. “Closed / filtered” means no response. Private/internal addresses are blocked. Only check hosts you own or manage.