RON

Detailed explanation

RON, or Run of Network, extends the same logic as Run of Site up a level: instead of running across one publisher's full inventory, a RON buy runs across every site (or app) that belongs to a given ad network, with the network's platform distributing impressions wherever matching inventory is available across its member sites.

This makes RON one of the broadest and typically most cost-efficient ways to buy reach and volume in a single transaction, since it aggregates inventory from many publishers instead of requiring separate deals with each one. It is commonly used for large-scale awareness campaigns, remnant inventory buys, or situations where an advertiser wants maximum impression volume at the lowest achievable cost.

The cost of that efficiency is control and consistency: because the exact publisher and placement can vary impression to impression across the network, brand safety, viewability, and contextual relevance become more important to actively manage in a RON buy than in a single-publisher deal, since a RON campaign is only as good as the network's overall inventory quality and its brand-safety filtering.