Release Date: October 6th, 2026

Site targeting now supports wildcards, allowing users to target subdomains without adding each subdomain individually.

This functionality is available for:

• Sites
• Site List – Configured in Inventory > Site Lists and then targeted on the Campaign or Line level > Targeting > Site Lists
• Allow Lists
• Block Lists

To include subdomains of a domain, add *. before the domain.

Block List Example

If *.abc.com is included in a Block List, requests from matching subdomains will be blocked.

For example:

Bid Request Domain	Result
www.abc.com	Blocked
news.abc.com	Blocked
sports.news.abc.com	Blocked
xyz.com	Eligible to serve, assuming it is not blocked by another targeting setting

Allow List Example

If *.abc.com is included in an Allow List, requests from matching subdomains can serve.

For example:

Bid Request Domain	Result
www.abc.com	Eligible to serve
news.abc.com	Eligible to serve
sports.news.abc.com	Eligible to serve
xyz.com	Not eligible to serve

Domains entered without a wildcard will continue to use the existing domain-matching behavior.