Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Ryte - Ryte is a web-based software invented for technical optimization for search engines and improvement of websites.
Optimizely - A/B testing you'll actually use.
Siteimprove - Consider the Siteimprove Intelligence Platform the newest member of your team.
Smartlook - Qualitative analytics for websites and mobile apps Start understanding the 'whys' of your users' behaviors with clear, visual insights. With session recordings and event tracking, you get the complete picture.
Koalati - Automated website testing and quality control tools for developers and agencies.