# 305 Use Proxy > Deprecated. Indicated that the requested resource had to be accessed through the proxy given in the response. Source: https://apiguide.dev/status-codes/305 Class: redirection Defined in: RFC 9110, Section 15.4.6 Updated: 2026-07-09 ## What does HTTP status code 305 mean? The 305 Use Proxy status code was originally defined to tell a client that the requested resource must be accessed through the proxy specified in the `Location` header. It never saw meaningful adoption. ## When to use it in APIs Do not use it. RFC 7231 explicitly deprecates 305 due to security concerns: it could be used to redirect a client's traffic through an arbitrary proxy, and most browsers and HTTP clients ignore it entirely for this reason. It is documented here only for completeness and historical reference, not as a viable option for API design. ## How it compares to other codes * **300 Multiple Choices**: A live, general-purpose redirection code, unlike 305, which is deprecated and unsupported in practice.