Cookie Sync API Documentation

  • Updated

Demandbase’s B2B buyer cookie pool enables precise targeting of verified users from target accounts. It links cookies and IP addresses to company entities using proprietary AI-driven methods.

The Cookie Sync API maps external user IDs to Demandbase cookies, enabling cookie-level actions across the platform.

Cookie Sync API Endpoint

Use the following endpoint to synchronize external user IDs with Demandbase cookies.

Request

Endpoint

Description
GET segments.company-target.com/log Returns a transparent 1x1 GIF.

Cookie Sync API Request Parameters

Parameter

Value

Required

Description
vendor string Yes Unique vendor identifier assigned by Demandbase. Contact Demandbase Support to obtain your identifier.
user_id string No External user identifier to synchronize with Demandbase.

Cookie Sync API Request Example

The following example sends a GET request with a vendor identifier and an external user ID.

GET https://segments.company-target.com/log?vendor=your_vendor_id&user_id=a_user

Replace your_vendor_id with your assigned vendor identifier and a_user with the external user ID.

Cookie Sync API Response Codes

HTTP Code

Description
200 OK The request returns a transparent 1x1 GIF in the response body.
500 Internal Server Error An unidentified server error occurred.