Rontar is a digital advertising company that specializes in retargeting and personalized display ads. The platform offers solutions that help businesses increase their online presence and improve conversion rates by showing tailored advertisements to users who have previously visited their websites. Rontar's services are designed to enhance brand visibility and engagement through advanced targeting techniques, including dynamic and static ad retargeting. The company aims to streamline the process of online advertising with user-friendly tools that simplify campaign management and tracking.