http://de.lichess.org/blog/VKbgmisAAF-R-QiR/fifty-million-games

On the 1st January 2015 lichess registered its 50 000 000th completed game (excluding aborted games).

Let's together review a few mind-blowing numbers about lichess!
Web traffic

According to Google Analytics, in 2014, we had:

190 757 559 pageviews - two times as many as 2013

3 163 423 unique visitors - two times as many as 2013

The most active countries are Russia (14%), USA (10%), France (6%) and Iran (5%).

At the time of writing, Alexa ranks lichess as the 17,457th most popular website, worldwide.
Chess stats

4 billion moves stored in the database, plus 78 played moves per second - or 6.7 million moves a day

140 thousand games finished every day

2.3 million computer analyzed games - amounting to 76 000 hours of processing

14.3 million puzzles solved by registered users