Azure Front Door: .ru domain validation stuck in Rejected state, validation token not generated

Härtig, Jonas 0 Zuverlässigkeitspunkte
2026-03-03T14:54:52.0166667+00:00

We have configured a custom domain dev.web.******.ru in our Azure Front Door Premium profile (fd-kampmann-dev). The validation state shows "Rejected" and certificate state shows "Domain validation needed".

All other domains (.de, .at, .ch, .fr, .it, .nl, .pl, .ca) on the same profile are fully validated with AFD-managed certificates. Root cause suspicion: When clicking "Regenerate" on the domain validation page, the token value field remains completely empty – no value is generated. Therefore it is impossible to set the required DNS TXT record _dnsauth.dev.web.****.ru.

The Azure Diagnostics tool only reports "TXT record missing" but does not address why the token cannot be generated.

We suspect an Azure-internal compliance filter is blocking token generation for .ru TLDs. Has anyone encountered this? Is there a workaround?

Azure Content Delivery Network

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