In addition to tagging, the linkedId lets you connect an identification event with a custom identifier that is indexed by FingerprintJS. This lets you filter visit history when querying the server API. Unlike tags, the linkedId is a string. Objects or non-string values are not supported.
The server API returns identification events up to 30 days in the past. For information critical to your business, we recommend storing copies of this data on your own servers. Enterprise plans include unlimited server-side storage of identification events.
Authenticated User Tracking - bulk information collection of authenticated visitors
Link user ID with
Form & Survey Abuse - protect forms from duplicate entries
Link survey ID with
Coupon & Promo Abuse - protect profits from duplicate promotion abuse
Link promo code with
E-commerce Inventory Abuse - prevent illicit repeat orders made by anonymous visitors
Link order ID with
Do not expose the server API key in production. You can make requests from the server side using our official Node.js wrapper. If you need to access the server API in production, it is recommended you perform authorization via auth headers instead of using the api key inside the endpoint.
Updated 4 months ago