HTTP error codes, the short version: 2xx: here you go 3xx: you go here 4xx: you fucked up 5xx: I fucked up (not mine, stolen from I-can't-remember

HTTP error codes, the short version: 2xx: here you go 3xx: you go here 4xx: you fucked up 5xx: I fucked up (not mine, stolen from I-can't-remember-where)