Copy the embed code
From Offerwalls, use the copy/embed action for the wall you want to publish. The hosted wall is designed to run inside an iframe on an approved HTTPS site.
Allowed embed domains
You can restrict iframe use to exact HTTPS origins or wildcard subdomains. Leave the field blank only when you intentionally want the wall embeddable anywhere.
Pass the visitor ID
Your integration should insert the current user’s stable identifier into the wall URL. Without that identifier, user-level conversion reconciliation is weaker or may be disabled by your wall settings.