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Update from support feedback: document default subdomain indexing - #7411

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mintlify[bot] wants to merge 2 commits into
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mintlify/04eb8f23
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mintlify[bot] wants to merge 2 commits into
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mintlify/04eb8f23

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@mintlify mintlify Bot commented Sep 18, 2026

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Summary

Two customers reported that their <subdomain>.mintlify.app address stayed crawlable — and in one case outranked their custom domain — after they configured a custom domain. The existing custom domain and SEO pages cover canonical URLs and page-level noindex, but never warn that the default host stays indexable or explain how to hide it.

Changes

  • Added a note under "Set a canonical URL" in customize/custom-domain.mdx explaining that the default <subdomain>.mintlify.app address stays reachable and indexable, that the canonical tag alone is only a hint, and pointing to support for a noindex response.
  • Created help-center/default-subdomain-indexed-alongside-custom-domain.mdx covering why it happens, how to request a noindex from support, and interim mitigations in Google Search Console.
  • Registered the new article in the Help center group in docs.json.

Support context


Note

Low Risk
Documentation and navigation only; no product code, auth, or data-handling changes.

Overview
Documents that <subdomain>.mintlify.app stays crawlable after a custom domain is configured, and that a canonical URL alone may not stop the default host from ranking.

Adds a <Note> under “Set a canonical URL” in custom domain guides (English plus es, fr, zh) pointing readers to support for a noindex response and to a new help article.

Introduces help-center/default-subdomain-indexed-alongside-custom-domain (and localized copies) covering why Mintlify does not auto-noindex or redirect the default host, how to email support with org/deployment details, and interim steps in Google Search Console. The article is wired into the Help center nav in docs.json and locale *.json files.

Reviewed by Cursor Bugbot for commit 676c54e. Bugbot is set up for automated code reviews on this repo. Configure here.

@mintlify

mintlify Bot commented Sep 18, 2026

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