Apparently there is a way to get to know the fediverse instance hosting IP even if we are behind proxy like cloudflare
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Where is all of the fediverse?
https://blog.benjojo.co.uk/post/who-hosts-the-fediverse-instances
it's about activitypub protocol itself calling our real host public key to validate http signature . Is that commonly known fact and can the fediverse be improved here?