How to Design Tenant-Specific Subdomains in Your SaaS Application

I recently worked on a feature for configuring tenant-specific custom subdomains in our product. In this article, I am sharing some of the designs our team iterated on, and their pros and cons.

What are tenant-specific subdomains?

Tenant-Specific Subdomains (a.k.a. custom subdomains) are a common feature provided in a multi-tenant SAAS solution, allowing each tenant to configure a subdomain of their choice.