Alt (Alternative Text)
Alt is an alternative text for the img (image) tag. The text tells the search engine what is shown in the image.
Alias
Alias – An additional domain for an existing site. When accessing the alias, the user is directed to the main site.
Acceptor (Acceptor Site)
An acceptor or recipient site is a promoted site that is linked to by backlinks placed on a donor site.
Account
Account (account) – a set of data about the user, necessary for recognising him/her and providing access to his/her personal data and settings of the service or website.