All HTTP status codes

HTTP 203 Non-Authoritative Information

Success

The request succeeded, but the response was modified by a transforming proxy between the origin and the client.

Defined in RFC 9110

Common causes

  • A proxy or gateway altered headers or content on the way through

How to fix it

  1. If the transformation is unwanted, identify the intermediary and disable content rewriting

Related status codes

200 OK

The request succeeded. The response body contains the result — a page for GET, the operation outcome for POST.

Want to explore status codes interactively? Try the free HTTP Status Code Reference — search, categories and example responses, right in your browser.