Cloudflare Browser Isolation

Cloudflare Browser Isolation is a high-performance Remote Browser Isolation (RBI) technology that executes active web browsing sessions in secure, disposable containers hosted across Cloudflare global edge network, delivering zero-trust web browsing protection to enterprise workforces. Rather than executing untrusted web code, JavaScript, and fonts directly on corporate endpoint laptops and mobile devices, Browser Isolation runs the browser inside an isolated cloud container and transmits only safe vector rendering commands to the user local browser using Cloudflare patented Network Vector Rendering (NVR) technology.

This approach guarantees that zero-day browser exploits, malicious drive-by downloads, ransomware scripts, and compromised web fonts never touch the user endpoint machine. Unlike legacy pixel-pushing isolation technologies that suffer from noticeable typing lag, high bandwidth consumption, and blurry display output, Cloudflare NVR delivers lightning-fast, crisp, high-resolution browsing experiences indistinguishable from native local browsing. Furthermore, administrators can enforce granular data protection policies within isolated browsing sessions, such as disabling file downloads, preventing clipboard copy-paste operations, blocking file uploads, and rendering pages in read-only mode to prevent credential theft on suspected phishing sites.

Cloudflare Browser Isolation integrates seamlessly into Cloudflare Zero Trust, Cloudflare Gateway, and Cloudflare WARP. Primary use cases include protecting employees against zero-day web malware and spear-phishing links, securing unmanaged contractor web access, preventing accidental sensitive data exfiltration to unauthorized web portals, and enabling safe browsing for high-risk corporate executives. The platform complies with top global security standards including SOC 2 Type II, ISO 27001, and HIPAA.