What is HTTP Response Status Code 306 Switch Proxy?
HTTP response status code 306 Switch Proxy was reserved for future use to indicate that the client should switch to a different proxy. However, it is no longer used and was never implemented.
When is HTTP Response Status Code 306 Switch Proxy Used?
The 306 status code has no practical use today. It was reserved but never standardized, and clients will not encounter it in modern web applications.
Example 1: Placeholder Example for 306 Switch Proxy
# Client sends a request. GET / HTTP/1.1 Host: www.example.com # Server Response HTTP/1.1 306 Switch Proxy Date: Wed, 09 Oct 2024 13:05:00 GMT Server: Apache/2.4.41 (Ubuntu) # This status code is no longer in use and is included only for historical reference.
Example 2: Historical Use of 306 Switch Proxy
# Client attempts to access a resource. GET /old-resource HTTP/1.1 Host: www.example.com # Server Response HTTP/1.1 306 Switch Proxy Date: Wed, 09 Oct 2024 13:07:00 GMT Server: CustomServer/1.0 # The server suggests switching to a new proxy, but this code is obsolete and not supported by clients.
Summary
The HTTP 306 Switch Proxy status code is obsolete. It was initially reserved for instructing clients to switch proxies but was never implemented. It has no relevance in current web development practices.
