I created multiple redundant IsItDown communities on different instances in case any one instance is down. I chose lemmy.world as one of them because of its size. I think I will ask users to primarily use this infosec.pub community though. Other people have already asked for clarity regarding which community should be the main one. I will also check out downinspector.com. People can use this community to talk about any issues with the availability of instances though I might word that more clearly in the sidebar.