This morning and afternoon I had a huge spike in usage from five countries. All my statistics looked "normal". This evening many of the statistics have gone to zero. See http://magree.blogspot.com/2017/08/unexpected-spike-in-blog-traffic.html, if it is still there.
Well, rebooting restored my data. Strange!
Looking at some other data, it looks like the references came from a small number of sites. I wonder if these sites were hacked to reference my site.
