Researching customer satisfaction becomes key for organizational competitiveness because satisfied customers become loyal customers. Therefore, it is important to measure customer satisfaction towards online shopping, since satisfied customers will make repetitive purchases and provide recommendations to others, thus generating the profit for a particular e-commerce company. Customer satisfaction towards online shopping can significantly be influenced by website service quality, hence many of the previous studies set up to show the relationship between website service quality and customer satisfaction. But still, limited literature has been focused on the mediating effects of the confirmation of customer expectation on the relationship between website service quality and customer satisfaction. Hence, the aim of this study is to measure customer satisfaction based on the website service quality with confirmation of customer expectation. A total of 500 questionnaires were distributed to online customers who are working in the private banks in Bangladesh. Our of 500, a total of 342 questionnaires were used for further analysis, representing a response rate of 68.40%. The hypothesis for direct effect was tested by regression analysis using Statistical Package for the Social Sciences (SPSS). The result of the study revealed that website service quality has a significant and positive relationship with confirmation of customers’ expectations and in turn, their satisfaction level towards online shopping. Implications and directions for future research are also highlighted in this present study.