Auth0 Multiple Custom Domains Is Now Generally Available

Auth0 has made Multiple Custom Domains (MCD) generally available for enterprise customers. MCD allows organizations to manage multiple branded login domains from a single Auth0 tenant, eliminating the need to provision separate tenants per brand. Key features include per-domain customized login/sign-up pages via Advanced Customized Universal Login (ACUL), domain-aware email templates and links, passkeys and self-service SSO per domain, and domain-context-triggered Actions. This benefits both B2C companies scaling brand portfolios and B2B SaaS providers offering white-label authentication to their customers.