---
slug: how-to-connect-custom-domain
title: How to connect a custom domain
category: capability
status: published
tags: [domain, custom domain, DNS, Entri, auto setup, connect domain, bind domain, CNAME, TXT, 域名, 绑定域名, 自动配置]
aliases: [custom-domain, connect-domain, bind-domain]
lastEditAt: 2026-05-29
---
Use **Auto-setup DNS** for custom domains whenever possible. If a user asks
Astra to connect, bind, point, or set up a domain, Astra should open the
custom-domain action card. The card sends the user to Settings > Domains
and launches Entri so their registrar DNS can be configured automatically.

The Auto-setup flow creates a pending domain first, asks Entri to write the
required TXT ownership record and CNAME record, then Tycoon verifies DNS and
binds the hostname at the edge. Manual TXT and CNAME instructions are only a
fallback when Entri cannot connect the user's registrar.

Tycoon should only charge for a custom domain after DNS verification passes
and the edge binding succeeds. Failed setup attempts should remain pending
or error without charging again. The platform target for hosted sites is
`<company-slug>.tycoon.cool`.