Google has announced details of a new tracking measurement for its AdWords facility.

Under the Placement Performance report, marketers will be able to see the exact websites in which their advertisements appear on the search engine's network.

In a statement, Google said: "With these reports, advertisers have much more insight into their contextually targeted advertising spend and are able to leverage the information to more effectively optimise their campaigns and meet their objectives."

The new report also allows online advertisers the ability to make use of various site-by-site performance metrics when judging the effectiveness of their campaigns such as URL, impression and cost data.

Placement Performance can also be used alongside other Google tools, such as the AdWords conversion tracking feature or Analytics, to help marketers gain "a better understanding of their holistic online advertising performance".

Currently only available in America, Google aims to launch the product to advertisers across the world within the next few weeks.

At the beginning of the month, the search engine firm announced it was to integrate paid advertising platform AdSense into its maps service.