wa_desert_rat - 1:11 am on Mar 15, 2013 (gmt 0)
My site is a PHPBB3 forum with about 300 visits a day, 5 page reads per visit. Yesterday Analytics reported a sudden surge of 48 visits - all of them in Palo Alto, California - which did not show up in the "Who is Online" listings. The "visitors" mostly cruised the same pages (members lists, index) and went up and down from 30 to 48 (all according to Analytics) while the forum indicated nothing at all more than the usual 10 to 18 users on line. I installed Piwik this morning in order to capture IP addresses and log visitors. No sign of slowdown or attack. Just weird.