My first attempt at pre-registering sorabji.nyc returned this exotic suite of error conditions:

405 Method Not Allowed
• Code: MethodNotAllowed
• Message: The specified method is not allowed against this resource.
• ResourceType: OBJECT
• Method: POST
• Requestld: 292520C57021903B
• Hostld: X5WKbXUgOTlEcFkkRKFOru08finp85Gn5KTq5Sf7wfxttOoyOE8wBYR61apecsCSD

Hostld: X5WKbXUgOTlEcFkkRKFOru08finp85Gn5KTq5Sf7wfxttOoyOE8wBYR61apecsCSD

Hostld: X5WKbXUgOTlEcFkkRKFOru08finp85Gn5KTq5Sf7wfxttOoyOE8wBYR61apecsCSD