What does Run of Channel (ROC) allow in ad campaigns?

Run of Channel (ROC) allows ads to appear across any channel of a publisher's site, meaning that the ads are not restricted to specific pages or sections. This approach maximizes the exposure of the advertising message by placing it wherever there is available inventory within the channel, enhancing the chances of reaching a wider audience. It is particularly useful when advertisers want to ensure their ads are seen in diverse contexts, potentially leading to higher engagement rates.

In contrast, the other options focus on limitations or fixed placements that do not align with the essence of ROC. Selecting ads to appear only on specified locations restricts the potential audience reach. Banning ads to specific times imposes a schedule that limits when the ad can be seen, while fixing ad formats would limit creative flexibility, both of which diverge from the broader exposure intent that ROC aims to provide.