CTR Doubled for No Reason

[matrix1234]

My CTR got higher and higher in the past week, it was very stable before, now almost doubled the average of the last 3 months. Since I didn't change anything, I started to worry about if someone intentionally clicks my ads . Should I let Google knows about it? Thanks!

[incrediBILL]

I just posted this in another thread too...

You need to take control of the situation and figure out if it's fraud clicks or not.

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Take the guess work out of it and install a script to monitor for reprtitive clicking by specific IP addresses and block them if it appears someone is trying to harm you. When you see 100 clicks in an hour form the same IP, it *might* raise a red flag.

There are a couple of threads on AdSense tracking scripts:

[webmasterworld.com...]
[webmasterworld.com...]

Requires separate server side coding, someone may be willing to share with you.