Win Notifications & User Syncing

The platform supports two OpenRTB implementations:

1. OpenRTB without “nurl” (default). In this scenario, “nurl” field is absent in bid responses and the system will record wins

automatically when impression happens. SSP has to replace ${AUCTION_PRICE} before the ad markup is being rendered.

2. OpenRTB with “nurl”. Win URL is represented as a separate bid response field. In case of 2nd price auction usage, “nurl” has

to be called before the actual impression happens.

SSP Initiated User Matching

To sync a particular user with AdKernel, the SSP should initiate the user to call for image or iframe pixel using the following URLs:

Image: <img src='//sync.adkernel.com/user-sync?zone={zone_id}&t=image&r=SSP_REDIR_URL' style ='display:none' width='0' height='0'></img>

Iframe: <iframe src='//sync.adkernel.com/user-sync?zone={zone_id}&r=SSP_REDIR_URL' style ='display:none' width='0' height='0' frameborder='0'></iframe>

Where:

- SSP_REDIR_URL is URL-encoded redirect URL to SSP that shall include macro {UID} which will be replaced with buyer’s userId;

- {zone_id} - SSP-specific zone id.

After performing successful user sync, SSP needs to sent DSP’s user id in user.buyeruid bid request field.