Thanks!

> Will AutoSSL also provide a way for the customer to login and provide them instructions on how they can set up the domain on their side?

Yes, I expose two APIs - add and delete. When your customer adds a domain, you can hit our API to whitelist it. The API responds back with CNAME instructions. Your app just needs to pick it up and display it to the users.

> What are the proxying limitations? Does it support Websockets? How much load can it handle?

I have 5 servers right now that handle TLS and fetch content from the origin. I just did a load testing with about 20K requests per minute, and it did fine. Will do more tests as I move forward. But before doing anything just wanted to know if anyone is actually going to use the product. :D