When a HTTP request is fired by the browsers then a sequence of task a performed. Like First server accept that request and then search the resources which are required by request then these resource and other information are send back to the browsers . Our browsers shows these all request and responses in the form of Predefine Codes Which are known as Status Code. Each specific code explain a Different Information. If we have a knowledge of some basic Status Code then we can find that what is really happen when we post a request to a specific server. You can See these Status Code Network tab of Inspect Element.
Some Codes which are commonly used are below:
| Status Code: | Status | Description |
| 200 | OK | Standard response for successful HTTP requests. The actual response will depend on the request method used. GET: The resource has been fetched and is transmitted in the message body.
TRACE: The message body contains the request message as received by the server
POST: The resource describing the result of the action is transmitted in the message body. |
| 201 | Created | The request has succeeded and a new resource has been created as a result of it. This is typically the response sent after a PUT request. |
| 204 | No Content | There is no content to send for this request, but the headers may be useful |
| 302 | Found | It means a new URL is found by the browser and Previous Url will change |
| 404 | Not Found | Server can not found the Requested Resource |
| 408 | Request Timeout | This code is used by server when a connection is timeout. |
| 505 | HTTP Version Not Supported | The HTTP version used in the request is not supported by the server. |
These are some Important Status code which are commonly used by HTTP for establish a communication b/w Server and Browser. You can examine all these code in a browser in Network tab of Inspect Element of A browser .