Optimizely - A/B testing you'll actually use.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Dynamic Yield - Personalization & customer experience management
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
AB Tasty - AB Tasty is an all-inclusive platform for conversion rate optimization, personalization, customer activation, and testing.
Website Checker Tech - WebsiteChecker.Tech is SaaS tool that detects SEO and availability issues of your website, making it easier for you to fix them.