Which type of advertising is intended to re-engage users who previously visited a site?

Retargeting ads are specifically designed to reconnect with users who have previously interacted with a website but did not complete a desired action, such as making a purchase or filling out a form. By using tracking technologies, these ads display targeted advertisements to users as they browse other websites, reminding them of the products or services they viewed. This strategic approach capitalizes on the initial interest shown by the user, aiming to guide them back to the original site in hopes of conversion.

Understanding this concept is valuable because retargeting has proven to be a highly effective marketing technique, often resulting in increased conversion rates and enhanced return on investment compared to standard advertising methods. The other options listed, while useful in their contexts, do not specifically focus on re-engagement with past site visitors.