SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
Quizterra - Create, publish and monetize interactive content on your website. Quizterra is a functional quiz making software with great designs, wide functionality, and free embed.
Site Rank Data - View historical rank information of websites via time series charts.
Zembula - Zembula enables marketers to create and embed interactive experiences that are optimized for conversion.
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.
4screens - 4screens is an interactive content creation platform enabling marketers to create engaging interactive content and social experiences.