fix: clarify Turnstile hostname management subdomain behavior - #29752
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patriciasantaana merged 2 commits intoApr 27, 2026
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Rewrite the Subdomain behavior section to explicitly document that: - Adding a root domain (e.g. example.com) automatically covers all subdomains - Adding a specific subdomain restricts the widget to that subdomain and its children only - Wildcard characters are not supported in the input field, but subdomain inheritance is automatic Also adds a root domain example alongside the existing subdomain example, and a note about using specific subdomains for narrower scope. Addresses confusion reported by support agents (SPM-3371).
zeinjaber
requested review from
migueldemoura,
patriciasantaana and
punkeel
as code owners
April 10, 2026 19:30
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Maddy-Cloudflare
approved these changes
Apr 25, 2026
patriciasantaana
approved these changes
Apr 27, 2026
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Summary
example.com) automatically authorizes all its subdomains (www.example.com,shop.example.com, etc.)*character is not accepted as input — not that there is no subdomain inheritanceContext
This was raised in an internal support chat where multiple agents were unsure whether adding a root domain covers subdomains. The current doc only shows a subdomain example (
www.example.com) and the "no wildcards" statement is easily misinterpreted.Testing
End-to-end testing was performed using a Cloudflare Worker deployed across three hostnames:
Test 1 — Root domain (
zein.firewall.team) in allowed list:zein.firewall.teamsub.zein.firewall.teamtest.zein.firewall.teamTest 2 — Only subdomain (
sub.zein.firewall.team) in allowed list:sub.zein.firewall.teamzein.firewall.teamtest.zein.firewall.teamRelated