Port Checker
Check ports, domains, and public reachability in one place.
Enter a public hostname or IP, optionally pick a port, and Kordu Probe combines TCP, DNS, HTTP/HTTPS, and IP metadata into one clean answer. If you do specify a port, you still get the traditional open / closed / timeout semantics for the TCP path.
Run a public connectivity check
Run a public connectivity check for hostnames, IPs, ports, DNS, and web reachability.
Ready
Turnstile-gated website checks run through the unified connectivity API.
Complete Turnstile before running a live check. View API contract