English to Russian Marketing Internet, e-Commerce

Agency reserves the right to use third party products to protect its Advertiser by blocking an Ad from running in breach of the Digital Publisher Standards and Publisher shall provide Agency at the point of impression with the referring URL (of the page where the Ad is shown) or make the referring URL available for Agency to extract itself (at Agency's discretion).

Не пойму вторую часть предложения, начиная с Publisher shall provide Agency.