What does "real-time bidding" (RTB) allow advertisers to do?

Real-time bidding (RTB) enables advertisers to acquire ad placements through instantaneous auctions that occur in a fraction of a second as users navigate online. When a user visits a webpage, available ad inventory is auctioned off in real time, allowing advertisers to bid for the opportunity to display their ads to that user based on various targeting parameters. This dynamic process ensures that ads are served to the right audience at the right moment, maximizing the efficiency of advertising budgets.

The other options do not accurately capture the capabilities of RTB. Reviewing low-performing ads pertains to performance analysis rather than the bidding process itself. Selecting ad formats based on regional performance is more related to strategic decision-making rather than the mechanics of real-time bidding. Targeting specific demographics for static ads only does not reflect the full range of capabilities RTB provides, which includes dynamic and data-driven ad placements.