Google Tag Manager.

_ga
Registers a unique ID that is used to generate statistical data on how the visitor uses the website.
Expiry: 2 Years Type: HTTP
_gid
Registers a unique ID that is used to generate statistical data on how the visitor uses the website.
Expiry: 1 Day Type: HTTP
ads/ga-audiences
User by Google AdWord to re engage visitors that are likely to convert to customers based on the visitor's online behaviour across website.
Expiry: Sessione Type: Pixel