Slim Stats Numbers Whacked Out

Hello

I reset my stats in slim stats lastnight. When I woke up this morning
it showed 1,099 hits …..human visitors 3. Bots 1,096. I tracked it down to 2 IP addresses. One in Reston Virginia. And the other on Provo Utah. I saw in the visitors section a robot.txt file.

What could be happening to cause that. I was fooling with the Super Cache plugin lastnight to check pageloads, but I deleted the super cache. I’m concerned about this with the stats.