Must Know Internet Error Codes

Error 400 � Bad request.Error 401 � unauthorized request.Error 403 � forbidden.Error 404 � Not found.Error 500 -Internal error.Error 501 � Not ImplementedError 502 � Bad GatewayError 503 -Service unavailable.Error 504 � Gateway Time-OutError 505 � HTTP Version not supported/ DNS Lookup Fail/unknown hostError 500-599 � Server Errors��