ChatGPT/Sites/Q/Can ChatGPT Sites be served from a custom domain?

• Can ChatGPT/Sites be served from a custom domain?

  • AI Answer

    • Short answer: Yes, with exceptions. A Site can use a domain you own by pointing its DNS records at the Site. Sites in Enterprise workspaces cannot at launch.
    • Setup, per Stacktree and PlayCode
      • You must already own the domain. Sites does not register or sell domains, and the domain stays at your registrar.
      • Open the Site's settings and choose Add domain.
      • Enter an apex domain or a subdomain.
      • Add the DNS records and values Sites shows at your domain provider.
      • Wait a few minutes, then refresh the domain status in Sites.
      • ChatGPT can walk you through the registrar's pages if browsing or computer use is on.
    • Limits
      • Not available for Enterprise workspace Sites at launch.
      • Availability is stated as "where available". The sources I found do not give a per-plan list.
      • A custom domain does not change who can view the Site. It stays public or limited to signed-in invited users.
    • Not verified
      • OpenAI's help center article, Creating and using ChatGPT Sites, returned HTTP 403 to my fetch, so the steps above come from secondary write-ups that cite it. Check it directly before relying on the Enterprise or plan details.
      • The DNS record types and whether HTTPS is issued automatically are shown only in the connection flow, per Stacktree, so they are not confirmed here.