# Your Domain, Our Routing Problem

> Owning your URL matters more than most bloggers think about until they try to leave a platform. When your content lives at someone-elses-service.

- URL: https://engineering.postlark.ai/12-custom-domains
- Blog: Postlark Engineering Blog
- Date: 2026-04-06
- Updated: 2026-04-06
- Tags: building-postlark, custom-domains, dns, seo, developer-experience

## Outline

- #The Route That Matched Nothing
- #Why Bother?
- #The Spam Calculus
- #Connecting a Domain
- #One Record, No Tricks