-
100's = these usually tell the client that the header part of the request has been recieved. informational status codes.
-
200's = these are the good ones. doesnt mean you got the right thing, but it met all validation requirements.
-
300's = tells the client that what they are looking for is no longer available in that location.
-
400's = client error codes. this means there was an invalid request sent from the client to thhe server.
-
500's = server error codes. something is going wrong with the server.