input: [Category] Performance data [Purpose] This is how Google Analytics decides whether a visit has timed out and also how deep a visit has gotten. It stores the number of pageviews in the current visit and the start time of the visitor’s current visit. [1st party or 3rd party?] 3rd party [Lifespan] The __utmb cookie is a persistent cookie that expires in 30 minutes. Each pageview refreshes it. [Cookie Name/ID] 
output: __utmb
options: _ _ u t m a
options: _ _ u t m b
options: _ _ u t m c
options: _ _ u t m z
options: _ _ u t m v
options: f o r u m _ c o o k i e _ A B C D