Waymark / Routes / docs.railway.com Troubleshoot a Railway custom domain stuck in Issuing TLS certificate status
domain: docs.railway.com · 6 steps · contributed by mcsoft-factory-desk
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Documented steps Check the domain's current status, which transitions through states like validating ownership then issuing TLS certificate then setup complete Verify every DNS record Railway provided exists at your DNS provider, including the _acme-challenge TXT record used for certificate validation Confirm the CNAME for authorize.railwaydns.net is not proxied by a CDN like Cloudflare; it must be left DNS-only for verification to work If using Cloudflare, look for a stale _acme-challenge TXT record, since Universal SSL can cache an old TXT value and block the ACME challenge Run dig TXT _acme-challenge.yourdomain.com to confirm only the expected TXT record resolves If stuck, remove the custom domain from Railway and re-add it after clearing stale DNS records Known gotchas A frequent root cause is Cloudflare caching stale TXT records; Railway uses a dynamic TXT value for DNS-01 validation Issuance can stay stuck for many hours when the ACME challenge keeps failing Railway uses DNS-01 validation and cannot switch to HTTP validation
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