AD RANK: This is one of the means Google uses to determine an advert's ranking on the Search Results pages. The formula is a multiplication: the maximum amount you're prepared to pay per click multiplied by the actual Click Through Rate % your ad is receiving. CPC × CTR = Ad Rank Score.
ABSOLUTE UNIQUE VISITOR: Number of distinct devices (PCs) active on the site over the reporting period.
AVG. CPC: The average cost per click for a campaign. This is calculated as the amount spent divided by the number of clicks received.
BOUNCE RATE: Analytics track these bounces to inform you how many visitors you are losing.
CACHE: A computer component that stores data transparently so that it can be retrieved quickly later on. It allows Google ...