Get instant insight into any website analytics: Similarweb
Similarweb is a free Chrome extension as well as a professional competitive intelligence web app which allows you to get instantaneous insight into any website by providing you with an aggregated view of its traffic, audience traits, referrer sites, similar sites and more useful info.
Free version on the web + Chrome extension.
Pro version info and pricing: https://www.similarweb.com/pricing
My comment: Similarweb does an excellent job of aggregating and presenting a true wealth of useful info for just about any website. A top tool for competitive intelligence research and for evaluating any online property. Recommended.
Try it out now: https://www.similarweb.com/
Chrome extension: https://chrome.google.com/webstore/detail/similarweb-site-traffic-s/hoklmmgfnpapgjgcpechhaamimifchmp
Comparing Similarweb free version and PRO version: