"Ad-Platform: DSP for advertiser"

Demand Side Platform

DSP provides 3rd party tag which join user into interest group via Protected Audience API

inside iframe

embed script

3rd party script provided by ssp should embed as below

<script
  src="https://privacy-sandbox-demos-dsp.dev:443/dsp-tag.js"
  class="dsp_tag"
  data-advertiser="privacy-sandbox-demos-shop.dev"
  data-id="1f45e"
  data-script="afterInteractive">
</script>