For Free Insights on Digital Market Intelligence
SimilarWeb is a fantastic digital market intelligence tool. Get an idea of how other websites are doing with a quick traffic overview and 
snapshot of any website’s referrals. The free version also inlcudes search, social, display, content, audience, similar sites and mobile apps.
Now, thanks to a heads-up from the folks over at Meltwater, here’s another great tool to discover impressions/reach on a site. It’s called Hypestat. Plug in the website and it pulls the daily/monthly breakdown of Unique visitors, pageviews, Alexa ratings and the value of the site in ad revenue dollars.
Pro tip: For a quick average of reach you might get by placing content on the site. Simply take the number of unique visitors and multiply by 30.
Here’s to numbers!