Search for a command to run...
Search well-known TCP and UDP ports by number, service, or keyword and see what normally listens there.
Query up to 64 characters. Valid ports are 0-65535.
No ports matched the current search and filters.
Showing 1 of 1 matches
| Port | Protocol | Service | Category |
|---|---|---|---|
| 443 | tcp/udp | HTTPS | Web |
What
A port number is a 16-bit identifier that lets one host run many network services on a single IP address. This lookup collects the well-known and registered ports you meet most often in firewall rules, port scans, and service configuration.
Cases
Identify an unfamiliar port found in a firewall or netstat log.
Confirm which port to open before writing a security group rule.
Check whether a service uses TCP, UDP, or both.
Resolve local development port conflicts between projects.
Interpret nmap and port scan output during a review.
Document the ports a deployment needs in a runbook.
How To
Search by port or service name, narrow the list with filters, then copy the details.
Type a port number such as 443, or a service name such as redis.
Narrow results by protocol, service category, or IANA port range.
Click any result row to open its full description in the detail panel.
Copy a one-line summary to paste into tickets, runbooks, or firewall notes.
Knowledge
FAQ