Adobe Analytics cookies

Adobe Analytics uses cookies to differentiate requests from different browsers and to store helpful information that an application can use later. They can also be used to associate browsing information with customer records.

Analytics uses cookies to define new visitors anonymously, help analyze clickstream data, and track historical activity on the website, such as response to particular campaigns or the length of the sales cycle.

Cookie name
2 years
45 bytes
Stores the Experience Cloud ID (ECID) or MID. Set by HTTP response. The MID is stored in s_ecid=MCMID format. Set after the client sets the AMCV cookie. It allows persistent first-party ID tracking and is used as a reference ID if the AMCV cookie expires. This cookie is not applicable to third-party cookie implementations. SameSite is set to “Lax.”
4 bytes
Determines if cookies are enabled. Set by JavaScript.
100-200 bytes
Used by Activity Map. It contains information about the previous link clicked by the visitor. Set by JavaScript.
2 years
44 bytes
First-party, or * (third-party)
Stores a unique visitor ID and timestamp. Set by HTTP response. Each visitor ID is associated with a visitor profile on Adobe servers. Visitor profiles are deleted after 1 year of inactivity, regardless of any visitor ID cookie expiration. The Secure flag is set when SameSite is “None” and connection is HTTPS. SameSite is “Lax” by default for first-party cookies. SameSite is “None” when using third-party cookies, such as on or Set SameSite to “None” when using a single CNAME to track multiple domains or properties.
2 years
33 bytes
Stores the fallback unique visitor ID and timestamp. Set by JavaScript if the standard s_vi cookie cannot be set due to third-party cookie restrictions. Not used for first-party cookie implementations.

Cookies Set By Plug-ins

Some implementations make use of plug-ins, which are snippets of code that provide additional functionality for Analytics. These plug-ins can set cookies that are not listed above. See Analytics plug-ins overview for a list of available plug-ins and what cookies that they set.