HTTP 420 Enhance Your Calm (Twitter)


The HTTP 420 Enhance Your Calm status code is a non-standard, humorous response that suggests the client should take a moment to relax and enhance their calm. While not part of the official HTTP specification, it is sometimes used in a playful context to inject humor into error responses.


The primary purpose of the 420 Enhance Your Calm status code is not to convey a technical issue but rather to entertain and lighten the mood. It serves as a reminder that even in the world of HTTP, a touch of humor can be injected.


Client Behavior:

  1. Send Request: The client sends an HTTP request to the server.
  2. Receive Response: The client unexpectedly receives a 420 Enhance Your Calm status code, prompting a moment of amusement.

Server Behavior:

  1. Process Request: The server processes the received request.
  2. Send Response: In a playful spirit, the server sends a response with a 420 Enhance Your Calm status.


  • Non-Standard: Keep in mind that 420 Enhance Your Calm is not a standard HTTP status code and should not be relied upon for actual error handling.

HTTP 418 I’m a Teapot (RFC 2324) HTTP 422 Unprocessable Entity (WebDAV)


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