# Substack Support: How do I set up my custom domain on Substack?

- Canonical HTML: https://growth.iangoh.com/sources/substack-support-how-do-i-set-up-my-custom-domain-on-substack-support-su/
- Original source: https://support.substack.com/hc/en-us/articles/360051222571-How-do-I-set-up-my-custom-domain-on-Substack
- Domain: support.substack.com
- Latest check: 2026-06-05
- Channels: Brand, SEO, Substack

## Cited GrowthDex tactics

- [Substack custom domain with root redirect before promo](/growth-ideas/substack-custom-domain-with-root-redirect-before-promo/) - Move the newsletter onto a branded Substack domain before the links spread, then 301 the root so trust and search signals do not split.

## Related reading

- [GrowthDex Blog](/blog/)
- [All growth ideas](/growth-ideas/index.md)