Splitly - Splitly is an A/B testing tool for Amazon FBA sellers.
Lander - Lander is a powerful online tool to create Landing Pages.
Optimizely - A/B testing you'll actually use.
Inbound Now - Build Landing pages, manage inbound leads, and create calls to actions to improve marketing with our Inbound Marketing Plugins for WordPress
invesp Pii Testing Engine - invesp Pii testing engine offers A/B testing solution for site optimization.
Pagewiz - An innovative landing page platform that lets you create, publish, and split-test landing pages.