Analytics not tracking spammers?

Since the middle of last week I have seen a 200%-300% increase in traffic, almost all of it is spammer creating accounts.

From my own server side tools I know that the increase is from different IP addresses located all over the world.
In other word, there isn't a straight forward rule that can be applied to catch the spammers, (not one that I can see anyway).

But looking at Google Analytic it looks like none of the increased traffic is included.
If anything it is reporting a slight drop in traffic.

From this I can assume 2 things,
1- The spammers don't use Javascript.
2- Google somehow keeps track of spammers and does not count them.

I suspect that the reason is #1, but do you think that Google keeps track of spammers in the site counters?

FFMG

 

maybe Analytics not tracking spammers

 

Analytics only counts visit, doesn't matter where it comes from.

 

Insert custom variables in your tracking code to refine Google Analytics tracking, read here for more: http://code.google.com/apis/analytics/docs/tracking/gaTrackingCustomVariables.html

 

Yes you are right!!!

It is very helpful to check the visits on a site.

 

what type of of rights have Google analytic in research group & what is Bounce rate in google Analytics

 

Yeeh Jaish_D you are right!!!