Max parameters: Defines the maximum number of parameters inside the request (default: max 128 parameters).
Max parameter name length: Defines the maximum length for a parameter name (default: max 128 bytes).
Max parameter value length: Defines the maximum length for a parameter value (default: max 1024 bytes).
Parameter length exceptions: A regular expression specifies any parameter which should not be checked against the length checks defined above. Editing the parameter exception pattern is done in the pattern popup.