Q-Stats - Get free marketing insights for every question on Quora.
OctoPerf - OctoPerf is a SaaS load testing solution, based on JMeter.
Seoxan - check seo report for any website, alexa ranking, server information, meta tags, authority, page speed and more
StresStimulus - Load testing tool for websites and mobile that works with hard-to-test applications.
HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.
SmartMeter.io - Performance Testing with Enterprise-Level Features with a familiar jMeter interface