Cookies

COOKIES

Here is a list of cookies that we use. We’ve listed them here so you that you can choose if you want to opt-out of cookies or not. 
_session_id, unique token, sessional, Allows Shopify to store information about your session (referrer, landing page, etc). 
_shopify_visit, no data held, Persistent for 30 minutes from the last visit, Used by our website provider’s internal stats tracker to record the number of visits 
_shopify_uniq, no data held, expires midnight (relative to the visitor) of the next day, Counts the number of visits to a store by a single customer. 
cart, unique token, persistent for 2 weeks, Stores information about the contents of your cart. 
_secure_session_id, unique token, sessional 
storefront_digest, unique token, indefinite If the shop has a password, this is used to determine if the current visitor has access. 
PREF, persistent for a very short period, Set by Google and tracks who visits the store and from where

More information about cookies from:

http://www.facebook.com/about/privacy/cookies
https://twitter.com/privacy
https://www.google.com/policies/privacy/cookies/
http://about.pinterest.com/privacy/
https://www.instagram.com/legal/cookies/