IPscan: Online IPv6 Firewall Tester & Port Scanner

Web-hosted IPv6 Firewall Security & Network Diagnostics

IPscan is a free, online, open-source tool for testing IPv6 host visibility via UDP/TCP ports and ICMPv6 pings. It also identifies responses from intermediate network devices. Over 212,191 IPv6 hosts and 20,794,700 ports have been tested.


Your connection:

Please return when you have a valid IPv6 address to test. If you believe this result to be in error, OR you would like to test a proxied or deny-listed host, then please email me.


See the IPscan Demo Server Wiki for technical details, privacy policy, automation and command-line testing, and debug suggestions. All other registered trademarks are the property of their respective owners.