Bots - Partitioned cookie support for Bot Management

Cloudflare now adds the Partitioned attribute to the __cf_bm cookie on compatible HTTPS requests. The attribute is added only when the cookie can also be issued with SameSite=None and Secure.

When users access your content through an <iframe> on another site, the browser handles __cf_bm as a third-party cookie. Browser privacy controls may block third-party cookies. Adding Partitioned allows the __cf_bm cookie to persist within that top-level site. This means that Bot Management can preserve continuity across requests, even when your content is embedded on another site.

For more information, refer to Cloudflare cookies.