See https://news.ycombinator.com/item?id=5198934

> Our site is indexable by Google and it doesn't do much fancy. On certain URLs, we generate a small HTML view of the content in the <noscript> tag. You can see this by viewing source or disabling JS in your browser. It's just a simple ERB template in Rails, and uses the same object graph that we serialize via Active Model Serializers.

> Google can see it and index it, we've confirmed by searching post launch.

> As time goes on we'll probably work more on it to make the SEO even better. As you can imagine it was tough to do when we were in stealth mode ;)

Maybe we could get an update from eviltrout on that.