Configure a Firewall Allowlist for Auth0 Authentication

This article provides a list of domains to add to a firewall allowlist to ensure proper function of Auth0 authentication within an application.

• Firewalls
• Auth0 Software Development Kit (SDK)
• Universal Login

To ensure the login page loads and functions properly, users should allowlist the domains for the custom Auth0 domain and the Auth0 Content Delivery Network (CDN). If the application allows authentication with a third-party.

The following domains must be added to the firewall allowlist:

• The application's custom Auth0 domain
• The Auth0 CDN domain: cdn.auth0.com
• The domains for any configured social or enterprise identity providers

Additionally, the domain app-site-association.cdn-apple.com is required for Universal Links and Associated Domains within the Apple ecosystem.