Help understanding the maps

[ThunderDownUnder]

Recently we had a strong storm front, mainly lightning with little rain. I grabbed a screenshot from lightningmaps.org for the last hour. A question has been raised on what the map actually shows, as to whether they are cloud to ground strikes, cloud to cloud, strikes or strokes.
I thought the grid total is for strikes, and strike locations may and often do include many strokes.
Appreciate any clarity we can get on this.
Thanks.