HTTP cookies uses HTTP cookies – as most other modern websites do.

An HTTP cookie (also called web cookie, Internet cookie, browser cookie or simply cookie, the latter which is not to be confused with the literal definition), is a small piece of data sent from a website and stored in a user’s web browser while the user is browsing that website. Every time the user loads the website, the browser sends the cookie back to the server to notify the website of the user’s previous activity – read more on Wikipedia

At the moment, the cookies saved by visiting are generated by 2 external services: Google Analytics (visitor tracking) – see Google Analytics Cookie Usage on Websites and AddToAny (social media sharing) – seeAddToAny Privacy Policy.