turbocharged - 2:15 am on May 6, 2013 (gmt 0)
I think most people understand what I mean when I say my client's homepage is cached on Appspot proxy. The homepage is obviously cached by Google on an Appspot subdomain for anyone that appears to be confused.
The Appspot proxies rip everything including canonical and all internal links. I have not checked the sitemap, but it would not surprise me if they ripped that too. If a user happens to land on an Appspot proxy, the can view your pages all day long without ever leaving that proxy. Sure, htaccess helps. But how many webmasters even know that these Appspot proxies exist?
While Appspot proxies may have a legitimate use, staff in our office append a CR when referring to Appspot. Blogspot is also referred to as Spamspot. Both of these Google owned properties are ripe for abuse and are being run by an Administrator (Google) that has absolutely no respect for original content creators. That's the conclusion that everyone in my office has come to, and Google's reluctance to secure their own properties is a testament to how they prioritize protecting copyrighted material.