Generally Available: Azure API Management Premium v2 and Standard v2 now support wildcard custom hostnames.

As API estates grow, managing individual custom domains and certificates for every subdomain can quickly become operationally complex and difficult to scale. Without wildcard support, every new subdomain — whether payments.api.contoso.com, inventory.api.contoso.com, or orders.api.contoso.com — requires its own hostname registration and certificate, meaning a team onboarding ten new API surfaces generates ten separate domain and certificate management tasks.

With this update, Azure API Management Premium v2 and Standard v2 now support wildcard entries in custom hostnames, allowing a single entry like *.api.contoso.com and a single wildcard certificate to cover all subdomains automatically — no per-subdomain configuration required. This helps teams:

• Simplify certificate and domain management at scale
• Reduce operational overhead for rapidly growing API environments
• Maintain consistent branded API endpoints across dynamic subdomains
• Accelerate onboarding of new API surfaces without repeated hostname configuration

By extending this capability to both Premium v2 and Standard v2, Azure API Management makes flexible and scalable domain management accessible to more organizations without requiring higher-tier deployments.

Learn more.