No. Keysend is using only destination nodeID, not IP.

Only in case of private nodes, you need to provide also rout hints for a keysend payment. Othwerwise, anybody can send any amount of sats to any public LN node any time, without requiring any LN invoice.

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Sorry I meant node Id which for public nodes is a lot of info. Yes I know.. in todays invoices we also have that problem.. would be good to find out a solution to that privacy leak

Use private channels with SCID alias on. No public channels. Once taproot channels come out that's even more privacy.