English to Spanish Law/Patents Law (general) Policy of Privacy

Good morning/afternoon for all:

An expressión in a Policy of Privacy made me confuse a little!
I would be very grateful if you could help me see things clearer :)

In addition, XXXXX may work with network advertisers and ad agencies to serve our advertisements on other web sites, within third party applications, and across the Internet, and to provide us with information regarding the effectiveness of our advertisements.

My attempt is: "para cumplir con nuestros anuncios en otros sitios web"

Thanks in advance!!