September 2017: I no longer use this approach, because App Engine will now generate SSL certificates for you, signed by Let’s Encrypt—which update automagically. 🆓 🔐 🎉 I use Google App Engine often, even for my personal site. HTTPS is now cheap, we have SNI, and it should exist everywhere. My personal site is hosted on a custom domain: if you’re hosting only at hwhistlr.appspot.com, you already