HTTP 203 Non-Authoritative Information

HTTP 203 Non-Authoritative Information indicates a success response outcome.

What this status code means

Non-Authoritative Information describes how the server processed the request and what the client should do next.

Who should act first

Interpret this code in protocol context before changing application logic.

What to check first

Confirm response code matches endpoint contract.
Check response body expectations (e.g., 200 vs 204).
Validate async vs sync semantics (e.g., 202).

How it differs from similar codes

HTTP 202 Accepted — full guide
HTTP 204 No Content — full guide

Reference and next step

Specification: RFC 9110.

Read the full troubleshooting guide for HTTP 203 · Open the 2xx hub · Compare adjacent codes