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I have discovered strange IP addresses in Apache logfiles:

For some users these IP addresses appear in the middle of the session.

What are these IP adresses? Is Google running proxy servers/anonymizers now?

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I'm just guessing, but it could be that they are identifying with something else than Googlebot as agent to check for cloaking based on user agent string. – Frands Hansen Jan 2 '12 at 10:00
up vote 4 down vote accepted

See this link to project honeypot It's just a webspider. Nothing to worry about.

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I have 2 users who have logged in from Google's IP addresses and Is spider creating accounts? – lars Jan 2 '12 at 9:59
If you look at the user agents listed on that page, you'll see that Google Wireless Transcoder ( has been seen from that IP. That could explain why users have been logging in from it. – Zanchey Jan 2 '12 at 10:06

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