http://maldomapyy5d5wn7l36mkragw3nk2fgab6tycbjlpsruch7kdninhhid.onion
However, once the node was synced and ready to send transactions, we began to actively see spy nodes in our peer list. Remote nodes constantly ask other nodes what block height is the highest they know about, to decide who to download which blocks from. Spy nodes use that data to see if a node is fully synced or not, because only fully synced nodes
can send transactions.