Auth0 is a cloud-based identity-as-a-service (IDaaS) platform that allows developers to implement authentication and authorization easily and securely. It supports single sign-on (SSO), multi-factor authentication (MFA), social logins, enterprise identity protocols (OIDC, SAML, LDAP), and user management APIs. Auth0 provides hosted login pages, embedded SDKs, and advanced user rules for customizing authentication flows. It integrates with major platforms like AWS, Azure, and Google Cloud, and is widely used by startups and enterprises looking to offload identity complexity while maintaining security and compliance.

Auth0 is fully blocked in China. Its dashboard, documentation, and primary endpoints (such as auth0.com and *.auth0.com) are inaccessible from Chinese networks. This prevents Chinese users from logging in using Auth0-managed credentials and also makes it difficult for developers in China to configure or test authentication flows. Auth0 does not offer a China-hosted service and does not integrate with local identity systems such as WeChat Open Platform or Alipay Login. Developers building for Chinese users typically rely on local IDaaS providers like Authing, Huawei IDaaS, or integrations with mini-program login systems for user authentication. These local systems offer compliance with PIPL and real-name verification laws, and also support QR code login, SMS verification, and third-party federation with domestic services. Applications targeting global users but with some Chinese audience should build pluggable authentication modules that allow dynamic switching between Auth0 and a compliant local alternative.

The information regarding service availability in China is provided for general reference purposes only. Due to the dynamic nature of network conditions and regulatory environments, the actual accessibility of these services may vary over time and by location. Users are advised to verify the current status independently.