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510

Not Extended

Server Error
RFC 2774

Further extensions to the request are required for the server to fulfill it.

Detailed Information

The 510 status code indicates that further extensions to the request are required for the server to fulfill it. This is often returned when a client attempts to access a resource that requires additional information or authentication.

Common Examples

  • API requests with missing extensions
  • Web page requests with missing extensions

Common Uses

  • API requests with missing extensions
  • Web page requests with missing extensions

Best Practices

  • Use when the request requires additional information or authentication
  • Include a detailed error message
  • Ensure proper request handling and extension negotiation

Quick Actions

Category Information

Server Error

The server failed to fulfill an apparently valid request

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HTTP Status Codes Reference - Complete List with Descriptions