Some forms and surveys are built and hosted through third-party software (SmartSurvey), and ‘skinned’ to look like the Cadw website.
Mae rhai ffurflenni ac arolygon wedi eu hadeiladu a'u cynnal trwy feddalwedd trydydd parti (SmartSurvey) a’u gosod yng 'nghroen' gwefan Cadw i edrych fel y gweddill.