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Add claude.app and livepreview.claude.app (Anthropic)#2815

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sid374 wants to merge 1 commit intopublicsuffix:mainfrom
sid374:anthropic-suffixes
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Add claude.app and livepreview.claude.app (Anthropic)#2815
sid374 wants to merge 1 commit intopublicsuffix:mainfrom
sid374:anthropic-suffixes

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@sid374
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@sid374 sid374 commented Mar 18, 2026

Anthropic hosts independent, user-controlled sites under these suffixes:

  • claude.app
  • livepreview.claude.app

Each subdomain serves content controlled by a distinct third party. Listing these as public suffixes ensures correct cookie scoping and origin isolation between independently-controlled sites.

Submission checklist

  • The submission follows the guidelines
  • The domains are registered and under Anthropic's control
  • Sorted alphabetically in the PRIVATE section (between Antagonist and Apigee)
  • _psl TXT records will be published pointing to this PR (see below)
  • Submitter email (sbidasaria@anthropic.com) is monitored and reachable

DNS verification

TXT records will be added to the zone after this PR is opened, pointing to this PR's URL.

Verify with:

dig +short TXT _psl.claude.app
dig +short TXT _psl.livepreview.claude.app

We commit to maintaining these records permanently per the PSL acceptance criteria.

@pencilnav
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pencilnav commented Mar 19, 2026

@sid374 PR Submitter MUST use the provided template WITHOUT modifying. Please edit your PR. And also, refrain from submitting AI slop.

Related: #2814

@mozfreddyb
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@sid374 Please take a closer look at our guidelines. E.g., we want an organizational function email address rather than a person's email address for the entry

@simon-friedberger simon-friedberger added the 👻 about to timeout Submitter not responding for >30 Days label Apr 7, 2026
@pencilnav
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@sid374 Do you still want this?

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4 participants