Cloudflare One is Cloudflare’s platform for securing access to applications, networks, and the internet. Its Zero Trust capabilities check who is connecting, whether their device meets security requirements, and what they’re allowed to access.
The core principle is: being inside the corporate network does not automatically make someone trustworthy.
Instead of giving a VPN user broad network access, you can grant access to a specific application under specific conditions—for example:
Allow employees to access the internal finance application only after signing in through Microsoft Entra ID with MFA, using a company-managed device.
Its main components include:
| Component | What it does |
|---|---|
| Cloudflare Access | Controls access to private applications using identity and access policies. |
| Cloudflare Gateway | Filters internet traffic to block malicious websites and enforce browsing policies. |
| Cloudflare Tunnel | Connects private applications to Cloudflare using outbound connections, reducing the need to expose inbound ports. |
| Cloudflare One Client / WARP | Connects user devices to Cloudflare so traffic and device policies can be enforced. |
| Device posture checks | Evaluate conditions such as operating system version or device security status. |
A typical private application setup looks like this:
Employee → Cloudflare → identity and device checks → Tunnel → private application
For your cloud architecture work, the application could run in AWS, Azure, GCP, or an on-premises data center. Cloudflare provides a common access policy layer across those environments.
Cloudflare One is the broader platform; Zero Trust is the security approach and set of capabilities within it.