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One of my clients is running 3rd party software on their site to prevent malicious hacker attacks. If the software identifies an attack (through HTTP), it will return a "301 Denied" response and then does a redirect. This instead of the tradition "301 Moved Permanently"
Does anyone know what Googlebot will "think" about this? (I hesitate to use the word respond or react as I assume the redirect will still happen.) We have had some issues with failed redirects in the past that have caused "Network Unreachable" errors. I need to make sure that Googlebot does not view this server response as invalid and flag the page as a "Network Unreachable" error.
If you are wondering how Googlebot will ever see this type of error, certain incorrectly marked-up HTML links to the site can invoke the defense code on the server.
I thank everyone reading this for their time and appreciate any thoughts/experience on the subject.
However, it is an error to return a 301 when a 403-Forbidden response is called for. Be aware that many (or most) "malicious" clients won't follow a redirect.
We had a 403 in there at first, but given our current situation we need a 301, as it is Googlebot that I am concerned about. Our security team are the ones who need to deal with the malicious clients ;).