Roost

Roost is the first to provide push notifications for websites. Power your web engagement and audience growth with cutting edge technology. Powerful feature sets including geolocation, A/B testing, and personalization.

Currently supports Chrome and Safari browsers on Windows, Mac, and Android. Firefox support is coming soon.

Roost is a Y Combinator backed company located in NYC.

Roost - Web Push Notifications

High-Level Overview

Roost is a pioneering technology company that builds web push notification solutions designed to help websites engage and grow their audiences effectively. Its product enables websites, especially in e-commerce and publishing, to send targeted, personalized push notifications directly to users’ browsers without requiring a mobile app. This helps publishers and online stores increase user retention, drive repeat visits, and improve conversion rates by delivering timely, relevant messages such as promotions, updates, or content alerts. Roost supports major browsers like Chrome and Safari, with Firefox support forthcoming, and offers advanced features including geolocation targeting, A/B testing, and campaign analytics to optimize engagement.

Origin Story

Founded in 2013 by Tim Varner along with Casey Haakenson and Burton Miller—serial entrepreneurs with prior experience in mobile push notifications—Roost emerged from a shared vision to bring push notification technology to the web. The founders recognized a gap in web engagement tools and aimed to build a platform that leveraged the emerging web push standards integrated into browsers like Safari and Chrome. After initial work focusing on enterprise clients, Roost pivoted to a publisher-facing service, officially launching in early 2014. Early traction came from independent publishers and e-commerce merchants who saw value in a new channel for audience engagement beyond email or social media.

Core Differentiators

• First-mover advantage: Roost was among the first to provide web push notifications, capitalizing on new browser standards.
• Advanced targeting: Features like geolocation, user segmentation (including custom aliases), and triggered notifications allow precise audience engagement.
• Marketing integration: Supports A/B testing and analytics, enabling marketers to optimize messaging and integrate push into broader campaigns.
• Cross-browser support: Works on Chrome, Safari, and Android browsers, with plans for Firefox, ensuring broad reach.
• Ease of use: No mobile app required, simplifying adoption for websites and brands.
• Developer-friendly: Provides tools for scheduling, automation (e.g., RSS feed integration), and campaign management.

Role in the Broader Tech Landscape

Roost rides the wave of increasing demand for direct, real-time user engagement on the web, as traditional channels like email face saturation and social media algorithms limit organic reach. The rise of web push notifications reflects a broader trend toward permission-based, personalized marketing that respects user choice while enhancing brand communication. Timing was critical as browsers began natively supporting push standards, enabling seamless integration without plugins or apps. Roost’s technology empowers publishers and e-commerce sites to build loyal audiences and monetize traffic more effectively, influencing the startup ecosystem by demonstrating the viability of web push as a mainstream marketing channel.

Quick Take & Future Outlook

Looking ahead, Roost’s future depends on expanding browser compatibility, enhancing AI-driven personalization, and deepening integration with marketing automation platforms. As privacy regulations evolve, Roost’s permission-based model positions it well to adapt and maintain user trust. The growing importance of omnichannel engagement strategies means Roost could become a key player in helping brands unify messaging across web, mobile, and other digital touchpoints. Its influence may extend by fostering a broader ecosystem of developers and marketers leveraging web push to complement other digital marketing efforts, reinforcing its role as a foundational technology in web user engagement.