What is http status code redirection?

http status code redirection refers to the situation where the status code returned by the server is 3xx when the client sends a request to the server. When the server receives the request, depending on the situation, the client may be asked to perform For further operations, such as accessing other URLs, resending the request, etc., in this case, the server will return a redirect status code to tell the client how to handle the request. Common redirect status codes include 301, 302, 303, 307, etc. Its use can help websites achieve page jumps, URL rewriting, load balancing and other functions.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

HTTP status code redirection refers to the situation where the status code returned by the server is 3xx when the client sends a request to the server. After the server receives the request, depending on different circumstances, the client may be required to perform further operations, such as accessing other URLs, resending the request, etc. In this case, the server will return a redirect status code to tell the client how to handle the request.

The HTTP protocol defines a variety of status codes, among which the 3xx series of status codes are used for redirection. Common redirect status codes include 301, 302, 303, 307, etc.

301 status code indicates permanent redirection. When the server receives the request, it will tell the client that the requested resource has been permanently moved to another URL and return the new URL to the client. After the client receives the 301 status code, it will automatically send a request to the new URL. This type of redirection is often used when a website changes its domain name or URL structure.

302 status code indicates temporary redirection. After the server receives the request, it will tell the client that the requested resource has been temporarily moved to another URL, and return the new URL to the client. After receiving the 302 status code, the client will automatically send a request to the new URL. This kind of redirection is often used for temporary website maintenance or load balancing situations.

303 status code indicates a redirect, but the client should resend the request using the GET method. After the server receives the request, it will tell the client that the requested resource has been temporarily moved to another URL, and return the new URL to the client. After the client receives the 303 status code, it will automatically send a request to the new URL using the GET method. This kind of redirection is often used for redirection after form submission.

307 status code indicates redirection, but the client should keep the original request method and resend the request. After the server receives the request, it will tell the client that the requested resource has been temporarily moved to another URL, and return the new URL to the client. After receiving the 307 status code, the client will automatically send a request to the new URL using the original request method. This kind of redirection is often used when the request method needs to be preserved, such as POST requests.

The use of redirection status codes can help websites achieve page jumps, URL rewriting, load balancing and other functions. At the same time, redirect status codes can also have an impact on search engine optimization (SEO). For permanently moved resources, the search engine will update the index and transfer the weight to the new URL; for temporarily moved resources, the search engine will retain the original index and weight.

In short, HTTP status code redirection is a status code returned by the server to the client to inform the client that the requested resource has been moved to another URL. Different redirection status codes have different meanings and processing methods, which can help the website realize functions such as page jumps and URL rewriting, and also have an impact on search engine optimization.

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