Launching a webservice: defining your MVP

When you have an idea for a webapp it's easy to get lost into neat little features. But do you need all of them straight away? How do you define your Minimal Viable Product

I made a tool to track your whole site's Pagespeed

We usually focus on getting the homepage Pagespeed to 90+, but what about the rest of the pages? I made a tool to help with this.