How does 300 differ from 301?

301 redirects to a single new URL permanently, while 300 presents multiple options for the client to choose from.

It can confuse search engines since there is no single canonical URL. Prefer 301 or rel=canonical for SEO purposes.

HTTP 300 Multiple Choices — Content Negotiation Guide

Informational3xx redirection

Overview

HTTP 300 Multiple Choices indicates multiple representations are available for the requested resource, and the user or user agent can select a preferred one.

Key Details

300 is rarely used in practice compared to other 3xx redirects
Server provides a list of alternative representations (different formats, languages, encodings)
The preferred choice should be indicated via the Location header
Response body typically contains a list of links for the user to choose from
Part of HTTP content negotiation alongside Accept, Accept-Language headers

Common Causes

Server offers the same resource in multiple formats (HTML, JSON, XML)
Content available in multiple languages without a clear default
Resource exists at multiple URIs and server cannot auto-select
API versioning where multiple versions are available at same endpoint

Steps

1Check the response body for a list of available alternatives and select one
2Set explicit Accept and Accept-Language headers in your request
3If building an API, prefer 303 See Other or specific content negotiation over 300
4Configure server-driven negotiation to auto-select based on client headers
5Use the Location header value as the preferred redirect target