Is it possible to have https://yourdomain.com on an App Engine site?

I know the Google App Engine docs say you can only have HTTPS on 开发者_C百科your foo.appspot.com domain, not with a custom domain.

But is it possible (and safe) to host a custom domain somewhere else, and set it up to proxy all HTTPS requests to https://foo.appspot.com?

If so, how would you recommend setting it up? And would it be much slower, compared to using https://foo.appspot.com directly?

Yes, it's possible to do this. It's secure if you trust your proxy and you use SSL from the proxy to the app. It will be noticeably slower, since there's a longer path between your user and your app. In addition, unless you get multiple proxies, all your traffic will have to go via a single global location, whereas the appspot domain is served from frontends all round the globe.