Become a Redditor and join one of thousands of communities. Multiply by 12 months to arrive at the estimated yearly subscription revenue. Mansoor Iqbal Updated: February 27, We chose to exclude these types of transactions because they are more confidential therefore difficult to track and much less consistent month-over-month. SimilarWeb peg the average time spent on the site per session as minutes, split between four pages. This is based on the concept of Subscriber Points each tier gets you different Subscriber Points.