Domain Name System. Translates domain names to IP addresses. Used by every device on the internet.
Test it now with our Port Scanner
| Port | 53 |
|---|---|
| Service | DNS |
| Protocol | TCP / UDP |
| Encrypted | Varies |
| Common Use | Domain Name System |
Online: Use our Port Scanner — enter your IP and port 53.
Command line:
nc -zv your-server-ip 53 (Mac/Linux)
Test-NetConnection -ComputerName your-server-ip -Port 53 (PowerShell)
Check locally:
ss -tlnp | grep :53 (Linux) netstat -an | findstr :53 (Windows)