Ninetailed

Ninetailed is a personalization and experimentation platform designed for modern, composable digital architectures. Unlike traditional personalization tools that sit on top of your website as an overlay, Ninetailed integrates directly into your headless CMS and content infrastructure, enabling content teams to create and manage personalized experiences within their existing content workflows.

The platform works natively with popular headless CMS platforms like Contentful, Sanity, and Contentstack, allowing marketers to define audience segments and personalization variants directly within their content models. This approach eliminates the flicker and performance issues common with client-side personalization tools while giving content teams full control over personalized content.

Ninetailed also offers A/B testing and experimentation capabilities, audience segmentation based on behavioral and contextual signals, and edge-side rendering for fast page loads. The platform is ideal for development teams using JAMstack or composable architectures who want personalization that fits into their modern tech stack rather than fighting against it.