SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Freshmarketer - An all-in-one CRO suite.
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.
SiteSpect - Enterprise A/B and Multivariate Testing