The quality and usefulness of the users experience when interacting with the website best defines
if the site is useful (original content that fulfill the needs of the users), usable (the website is easy to use), desirable (the images, videos and other design elements, identity, brand, and other design elements evoke emotion and appreciation, findable (navigable content) ,accessible (content is accessible to people with disabilities) and credible ( Userstrust and believe the website).
