Adsense Invalid clicks attack

Application Security SSL / TLS
1

Hi guys,

I believe my websites are under a new kind of invalid traffic attack that generates invalid clicks on Adsense. There has been some news report on this recently:

Our websites are based in south america, and all of a sudden last week we started receiving high traffic with over 90% bounce rate and ridiculous CTRs on Adsense for United States. US is not a targeted audience at all.

I wonder if there is any way we can intensify bot filtering specifically for US IPs?
What would you guys do in my position?

Thanks a lot

2

You could create an IP access rule under https://dash.cloudflare.com/redirect?zone=firewall/tools and impose a JavaScript or captcha challenge on all US requests.

3

Got it

The IPs rotation seem to be running under sophisticated scheme. Could the second solution (challenging US requests) work standalone?

Thank you

4

Second solution? Standalone?

5

andrenfaust,

I would not suggest filtering IP from USA coz most of the IP for google/adsense visits from US. They wont be able to read the content on your site. + Most other third party ad checker like moatads or grapeshot wont be able to access your site and it will definitely decrease your revenue.

6

If crawlers are of concern, one should use a firewall rule instead and exclude known bots.

(ip.geoip.country eq "US" and not cf.client.bot)
7

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