How well do you know dev tools?

Ruby? Simple and expressive. DigitalOcean? Great value. New Relic? Easy setup.

Can you identify which tool people use for the following reasons?

Easy setup
Heatmaps Included
Great Customer Support
Easy to Use

A/B Testing with In-Built Heatmaps
This is it!
A programming language used to build massively scalable soft real-time systems with requirements on high availability
This is it!
An open source programming language that makes it easy to build simple, reliable, and efficient software
This is it!
Deploy and run apps with bulletproof infrastructure, automatic scaling, and fair pricing
This is it!