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.
SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
KISSmetrics - Giving you the knowledge you need to make better decisions. Kissmetrics is a revolutionary person-based analytics platform for your whole team. Get product, sales, marketing, customer support working together to improve the metrics that matter.
Site Rank Data - View historical rank information of websites via time series charts.
Heap - Analytics for web and iOS. Heap automatically captures every user action in your app and lets you measure it all. Clicks, taps, swipes, form submissions, page views, and more.
Hitsteps - Hitsteps provides tools is a tool offering web analytics, live chat and page analysis.