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[ZT] mTLS availability and notifications #26362

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Nov 7, 2025
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[ZT] mTLS availability and notifications #26362

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9 changes: 2 additions & 7 deletions ...loudflare-one/access-controls/service-credentials/mutual-tls-authentication.mdx
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Expand Up @@ -7,10 +7,6 @@ sidebar:

import { AvailableNotifications, Render, Example } from "~/components";

:::note
Only available on Enterprise plans.
:::

[Mutual TLS (mTLS) authentication](https://www.cloudflare.com/learning/access-management/what-is-mutual-tls/) ensures that traffic is both secure and trusted in both directions between a client and server. It allows requests that do not log in with an identity provider (like IoT devices) to demonstrate that they can reach a given resource. Client certificate authentication is also a second layer of security for team members who both log in with an identity provider (IdP) and present a valid client certificate.

With a root certificate authority (CA) in place, Access only allows requests from devices with a corresponding client certificate. When a request reaches the application, Access responds with a request for the client to present a certificate. If the device fails to present the certificate, the request is not allowed to proceed. If the client does have a certificate, Access completes a key exchange to verify.
Expand Down Expand Up @@ -365,13 +361,12 @@ mTLS does not currently work for:
- Cloudflare Pages site served on a [custom domain](/pages/configuration/custom-domains/)
- Cloudflare R2 public bucket served on a [custom domain](/r2/buckets/public-buckets/#connect-a-bucket-to-a-custom-domain)

## Set up alerts for mutual TLS certificates
## Notifications for mutual TLS certificates

You can configure alerts to receive notifications before your mutual TLS certificates expire.
Cloudflare will send the following [notifications](/notifications/) before your mutual TLS certificates expire:

<AvailableNotifications
product="SSL/TLS"
notificationFilter="Access mTLS Certificate Expiration Alert"
/>

<Render file="get-started" product="notifications" />