Piston

Name	Description	Lifetime
CART	The association with your shopping cart.	1 Year
CATEGORY_INFO	Allows pages to be displayed more quickly.	1 Year
COMPARE	The items that you have in the Compare Products list.	1 Year
CUSTOMER	An encrypted version of your customer id.	1 Year
CUSTOMER_AUTH	An indicator if you are signed into the store.	1 Year
CUSTOMER_INFO	An encrypted version of the customer group you belong to.	1 Year
RECENTLY_COMPARED	Recently compared products storage, for later comparisons.	1 Year
PRODUCT_DATA	Stores configuration for product data related to Recently Viewed / Compared Products.	1 Year

Name	Description	Lifetime
CUSTOMER_SEGMENT_IDS	Stores your Customer Segment ID	1 Year
EXTERNAL_NO_CACHE	A flag that, indicates whether caching is on or off.	1 Year
FRONTEND	Your session ID on the server.	1 Year
GUEST-VIEW	Allows guests to edit their orders.	1 Year
LAST_CATEGORY	The last category you visited.	1 Year
LAST_PRODUCT	The last product you looked at.	1 Year
NEWMESSAGE	Indicates whether a new message has been received.	1 Year
NO_CACHE	Indicates whether it is allowed to use cache.	1 Year
PERSISTENT_SHOPPING_CART	A link to information about your cart and viewing history if you have asked the site.	1 Year

Name	Description	Lifetime
RECENTLYCOMPARED	The items you recently compared.	1 Year
STF	Information on products you emailed to friends.	1 Year
STORE	The store view or language you have selected.	1 Year
USER_ALLOWED_SAVE_COOKIE	Indicates whether a customer authorized cookies.	1 Year
VIEWED_PRODUCT_IDS	The products that you recently looked at.	1 Year
WISHLIST	An encrypted list of products added to your wish list.	1 Year
WISHLIST_CNT	The number of items in your wish list.	1 Year