Custom domain stuck at VALIDATING_OWNERSHIP / REQUIRES_UPDATE despite clean DNS

Question

```
Custom domain `app.shardapi.dev` (ID 17a8a220-ce06-40f5-a0a0-ed0a5eb94f9e)
on service pacific-hope/shard/production has been stuck for ~24h at:

certificateStatus: CERTIFICATE_STATUS_TYPE_VALIDATING_OWNERSHIP
  dnsRecordStatus:   DNS_RECORD_STATUS_REQUIRES_UPDATE

DNS is clean from the public internet:

$ dig +short CNAME app.shardapi.dev @1.1.1.1
  1dheau6u.up.railway.app.
  $ dig +short CNAME app.shardapi.dev @8.8.8.8
  1dheau6u.up.railway.app.
  $ dig +short CNAME app.shardapi.dev @9.9.9.9
  1dheau6u.up.railway.app.

DNS provider: Cloudflare, proxy disabled (gray cloud), TTL 1m.
No conflicting A/AAAA records. Target matches the value Railway gave me.

This looks like the same pattern reported here, which a Railway employee
resolved by pushing the validator manually:
https://station.railway.com/questions/unable-to-validate-custom-domain-api-d-71d8b9da

Could someone re-trigger validation on this domain? Happy to provide
anything else useful.

```

0x5b62656e5d · Accepted Answer

You need to add the TXT record provided by Railway.