is there something like
https://bitnodes.io/ that has a method to test if my node is available to the public?
how would i perform this test through a shell command? that would be a better option.
I have a litecoin node i'd like to test to make sure is accessible publicly. i also want to test my dogecoin and monero node
https://bitnodes.io does not show all bitcoin full nodes, but rather nodes that accept incoming connections from port between 1024 and 65535, and Litecoin has a similar analysis
https://ltc.bitaps.comor
https://blockchair.com/en/litecoin/nodesAs for unknown altcoin or general answer you can check Port Forwarding using canyouseeme.org just open port 18080 or 18081