Never really played around with Copyscape/GoogleAlert much but I noticed it tries to completely hide it's presence when accessing a server which isn't cool.
Not that I'm a fan of plagiarism as my copy of the DMCA is almost worn out from use, but I'm even a less fan of sneaky web crawlers that pretend to be shit they aren't.
The IP that Copyscape uses:
220.127.116.11 -> www.googlealert.comThe Copyscape user agent:
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"This is located in a Rackspace so if you're already blocking Rackspace then you probably won't be bothered with Copyscape in the first place:
inetnum: 18.104.22.168 - 22.214.171.124Of course you might not want to block this if you actually use Copyscape as it will become quite useless.
descr: Rackspace Managed Hosting