Ping & Port Scanner Tool
Ping and Port Scanner: Check if a Host Is Up and Which Ports Are Open
Send four ICMP pings to a public host and check whether TCP ports are open, straight from the web. Ports 80 and 443 are always checked, and you can add your own in a comma separated list. It is useful for confirming a firewall rule, a new server or a published service is reachable from the internet. Only scan hosts that you own or are authorized to test, as described in the terms of use.
How to use it
- Enter a hostname or public IP address.
- Optionally add extra ports such as 25, 3389 or 8443, separated by commas.
- Press Scan and read the ping result and the port table.
Frequently asked questions
Why can I not scan a private or internal address?
For safety the tool only scans public internet addresses. Private ranges such as 192.168.x.x and 10.x.x.x are blocked because this server could never reach your internal network anyway.
A port shows Closed but the service is running. Why?
A firewall may drop traffic from unknown sources, the service may listen only on a private interface, or the port may be filtered. A closed result means no connection could be made from this server.
Is there a limit on how often I can scan?
Yes, requests are rate limited per visitor to keep the tool available for everyone.