[vanstee]

Oh yeah a default would be nice. Good idea.

The image on the homepage isn't behind a CDN, but when you signup we give you a custom subdomain which is behind a CDN. Although the initial loading and resizing still takes a quick second, before we cache it.

Not exactly. The Heroku addon just means you can easily signup and manage Firesize from the Heroku dashboard. Although the code is AGPL'd so you could totally run your own hosted version of Firesize: https://github.com/asm-products/firesize