Update from support feedback: custom domain lifecycle & edge cases#6431
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Update from support feedback: custom domain lifecycle & edge cases#6431mintlify-development[bot] wants to merge 1 commit into
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Summary
Expand the custom domain page with lifecycle, advanced routing, and troubleshooting sections that cover recurring support themes not previously documented.
Changes
_acme-challengeTXTvalues, the always-on<subdomain>.mintlify.appURL, renaming a deployment subdomain, releasing a domain held by another organization, and removing a custom domain.502 Disallowed origin hosterror (often triggered by subdomain renames) and validation that stays pending after DNS looks correct.Context
Recently resolved support conversations clustered around custom domain lifecycle edge cases that the happy-path setup guide did not address. These additions turn the recurring answers into self-serve documentation.
Note
Low Risk
Documentation-only change to a single MDX page; no application or infrastructure code is modified.
Overview
Expands
customize/custom-domain.mdxwith self-serve guidance for recurring support topics that the initial setup flow did not cover.A new Lifecycle and ongoing maintenance section explains rotating
_acme-challengeTXT values at renewal, that<subdomain>.mintlify.appstays enabled, how to refresh custom domains after a subdomain rename, how to release a domain from another org, and how to remove a custom domain cleanly.Advanced routing scenarios documents serving multiple deployments on one hostname via subpath proxies (with links to existing deploy guides) and clarifies that multi-domain redirect to one deployment is not built in, with CDN/registrar workarounds.
A Troubleshooting section is added before Set a canonical URL, covering
502 Disallowed origin hostand validation stuck pending when DNS looks correct, with cross-links to earlier sections.Reviewed by Cursor Bugbot for commit 29feeb3. Bugbot is set up for automated code reviews on this repo. Configure here.