It is a cloudflare subdomain but it doesn't show that way in the URL, I dont know how that works though. Can anybody explain why this works? I dont have a naked domain with ssl with them but you can check this one out to see what it looks like https://www.luckybolt.com (also thats my brothers startup, if you are in SF, check it out). As you point out though, GAE is $10 / Mo. cheaper. I'll check that out for new projects.