400: “Bad request.” The server cannot return a response due to an error on the client's end. The server did not understand the request.
401: “Unauthorized.” or “Authorization required.” This is returned by the server when the target resource does not have valid authentication credentials. You may see this if you have set up basic HTTP authentication using htpasswd. The requested page requires a username and password.
402: “Payment required.” Initially, this code was afghanistan phone number library created to be used as part of a digital cash system. However, this plan never followed. You cannot use this code yet. Instead, it is typically used by various platforms to indicate that a request cannot be fulfilled due to a lack of required funds.
403: “Access to this resource is prohibited.” This code is returned when a user tries to access something they don’t have permission to view. For example, trying to access password-protected content without logging in may result in a 403 error. Access to the requested page is prohibited.
404:
404-not found
Do you remember this image? We do not feel the need to explain this item for our readers who regularly follow our blog content. =) Let's leave our link for everyone we just met . =)
405: “Method not allowed.” (source server) supports the received method, but the target resource does not. The method specified in the request is not allowed.
406: “Unacceptable response.” The requested resource can only produce unacceptable content based on the accept headers sent in the request. The server can only produce a response that is not accepted by the client.