Privacy policy: https://www.facebook.com/about/privacy/
| Cookie | Category | Purpose |
|---|---|---|
aks | Marketing | Determines the login state of a person visiting accountkit.com Contents: Account kit access token |
aksb | Marketing | Authenticates logins using Account Kit Contents: Request time value |
c_user | Marketing | Used in conjunction with the xs cookie to authenticate your identity to Facebook. Contents: User ID |
campaign_click_url | Marketing | Records the Facebook URL that an individual landed on after clicking on an ad promoting Facebook |
csm | Marketing | Insecure indicator |
datr | Marketing | Used to prevent creation of fake / spammy accounts. Datr cookie is associated with a browser, not individual people. |
dbln | Marketing | Used to enable device-based logins Contents: Login authentication values |
ddid | Marketing | Used to open a specific location in an advertiser's app upon installation |
_fbc | Marketing | Used by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers |
_fbp | Marketing | Used by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers |
fr | Marketing | Contains a unique browser and user ID, used for targeted advertising. |
ick | Marketing | Stores an encryption key used to encrypt cookies |
js_ver | Marketing | Records the age of Facebook javascript files. |
locale | Marketing | This cookie contains the display locale of the last logged in user on this browser. This cookie appears to only be set after the user logs out. The locale cookie has a lifetime of one week. |
lu | Marketing | Used to record whether the person chose to remain logged in Contents: User ID and miscellaneous log in information (e.g., number of logins per account, state of the "remember me" check box, etc.) |
m_user | Marketing | Used to authenticate your identity on Facebook's mobile website. Contents: Email, User ID, authentication value, version, user agent capability, creation time, Facebook version indicator |
oo | Marketing | Ad optout cookie |
pl | Marketing | Used to record that a device or browser logged in via Facebook platform. Contents: Y/N |
presence | Functional | The presence cookie is used to contain the user’s chat state. |
rc | Marketing | Used to optimize site performance for advertisers |
s | Marketing | Facebook browser identification, authentication, marketing, and other Facebook-specific function cookies. |
sb | Marketing | Facebook browser identification, authentication, marketing, and other Facebook-specific function cookies. |
sfau | Marketing | Optimizes recovery flow after failed login attempts Contents: Encrypted user ID, contact point, time stamp, and other login information |
usida | Marketing | Collects a combination of the user’s browser and unique identifier, used to tailor advertising to users. |
wd | Functional | This cookie stores the browser window dimensions and is used by Facebook to optimise the rendering of the page. |
xs | Marketing | Used in conjunction with the c_user cookie to authenticate your identity to Facebook. Contents: Session ID, creation time, authentication value, secure session state, caching group ID |
Running Facebook on your site? A free Conzent scan shows which of these cookies are set before consent, and the banner blocks them until the visitor agrees.
Last updated 2026-09-27.