The internet has established itself as an important sales channel in several industries, representing a significant portion of revenue. Customers want to leverage the simplified decision-making processes offered by the internet to achieve their desired goals more quickly and effectively. At this point, the usability of websites becomes increasingly important. If a visitor cannot reach their desired goal in a short amount of time, they will abandon the browsing process. Even for websites that are not designed as sales channels, this can lead to customer dissatisfaction with the company. Therefore, the primary objective of this work is to assess whether the website of MAFI Transport-Systeme GmbH meets the requirements of DIN EN ISO 9241 and can withstand current usability guidelines, focusing on Parts 11 and 110 of the standard.