Graphic design is a craft where professionals create visual content to communicate messages.
Web development is also known as website development, while the professionals that maintain a website are called web developers
Digital marketing, also called online marketing, is the promotion of brands to connect with potential customers using the internet and other forms of digital communication.
A web hosting service is a type of Internet hosting service that hosts websites for clients, i.e. it offers the facilities required for them to create and maintain a site and makes it accessible on the World Wide Web.