Just web complexity really, there are lots of reasons you might have multiple domains as a business. Language-specific domains, preview domains, multiple prope

Just web complexity really, there are lots of reasons you might have multiple domains as a business. Language-specific domains, preview domains, multiple properties (often not fully integrated) etc. You can always paper over things with more redirects / params (so a landing that bounces on) or multiple clients but supporting multiple redirects can save the customer work in some scenarios.