The service provides categorization information for web content at the page level. It represents topical context for content located at a specific URL on a website with the goal of linking ads to relevant content and increasing exposure to users who show an interest in the topic. By targeting contextual classifications at the page level, the service seeks to help advertisers identify individual pages of interest to their prospective customers rather than choosing overall websites, which may cover a range of topics.
API methods support submission of a page URL to be classified. The API returns content parameters, including length and time to load, along with up to five contextual "channels" where the content fits best. The advertiser interested in those channels can then decide which specific pages to target with its promotional messaging.