Sitebeam - Spelling mistakes, SEO, load speed, social media, code, W3C, accessibility & more in one tool.
Decidr - Make better decisions with quick A/B polls
Ryte - Ryte is a web-based software invented for technical optimization for search engines and improvement of websites.
GoodUI Evidence - People's A/B test results that show which UI ideas work best
RankScience - Advanced Content Optimization Software for SEO
Lean Analytics - A/B testing React apps made easy