Create a URL channel for manage google adsesense targeted

You can access and create URL channels through the My ads tab.

Sign in to your account.
Visit the My ads tab.
From the sidebar, choose your product, then URL channels. Note that not all products support URL channels. You'll see existing URL channels here.
To add a new URL channel, click New URL channel.
Enter URLs, then click Add URLs.

track all pages across an entire domain    example.com
track only pages across the sports subdomain    sports.example.com
track all pages below a specific directory    sports.example.com/widgets
track a specific page    sports.example.com/index.html