Push notification ads are messages sent directly to a user's device through their browser or mobile app. These ads appear even when the user is not actively browsing the website. They typically appear as small notifications in the corner of the screen. Push notifications can be used to promote offers, updates, or important information. Users need to opt-in to receive these notifications. Advertisers use push notifications to reach a broad audience quickly and effectively. They are a great tool for engaging visitors and driving traffic back to a website. Many ad networks offer push notification ad services to monetize your website.