This website is not affiliated with or endorsed by the Wikimedia Foundation, the nonprofit that maintains Wikipedia and manages the Wikipedia trademark.
Note that at a given time, you can access views for only one of these: desktop, mobile web, mobile app, desktop spider, and mobile web spider. However, you can change your selection. Views until December 2015 for desktop include bot pageviews, while those from January 2016 exclude identifiable bots and spiders (but may still end up counting many views by bots and spiders as legitimate human views). Views for mobile web, mobile app, desktop spider, and mobile web spider are available starting July 2015. Mobile web and mobile app views from July 2015 onward exclude identifiable bots, and "desktop spider" and "mobile web spider" are basically all the bots/spiders (excluding Wikipedia's own, which get identified as bots).
There is also a more powerful website available if you're interested in visualizing trends. It's called Wikipedia Trends and is unaffiliated with Wikipedia Views.