In the past there was a anti xray plugin called "Ore Replacer" but now i can't find it on the plugin page and i could's find a better way to get rid of xrayers in my survival world
i just need a plugin that can do the same function or can get rid of xrayer that work on the spigot server
and thank you for your services and for providing us a server service like that for free 
(sorry about my bad english)