The collation and analysis of this data has been a lengthy and complex process, with 2456 tips identified, of which 327 are classified as higher risk.
Mae coladu a dadansoddi'r data hwn wedi bod yn broses hir a chymhleth, gyda 2456 o domenni wedi'u nodi, ac mae 327 ohonynt yn cael eu dosbarthu fel risg uwch.