This study aims to advance a new multi-dimensional usability evaluation approach (MDUEA) for websites including four phases In the first phase, components of usability evaluation as tasks, participants, usability criteria are determined. In the second phase, the Morae V3 package program used for the tests recording the user actions and the system usability scale (SUS) is performed by Morae at the end of the each task. In the third phase, Preference Selection Index (PSI), ENTROPY and The Criteria Importance through Inter criteria Correlation (CRITIC) are performed to obtain objective usability criteria weights considering a novel three-dimension initial decision matrices than, the weights obtained from these three techniques are aggregated via geometric mean operator. In the same phase, Rank Sum (RS), Rank Reciprocal (RR) and Rank Exponent (RE) methods are utilized to compute subjective criteria weights than, weights obtained from these three approaches are aggregated via using geometric mean operator. In the fourth phase, Combinative Distance-based Assessment (CODAS) is used to rank websites considering a new proposed threshold function value computation for objective criteria group and subjective criteria group separately.