Digital marketing refers to the practice of promoting products and services using digital channels such as search engines, social media, email, and websites. It involves creating and managing online advertising campaigns, optimizing websites for search engines, and analyzing data to understand and improve marketing efforts.

Web development, on the other hand, refers to the process of building and maintaining websites. It involves tasks such as designing and creating the website's layout and visual appearance, writing and testing code, and managing the site's content. Web developers may work on the front end, which refers to the part of the website that users interact with, or the back end, which refers to the underlying systems and processes that support the website.

In general, digital marketing focuses on promoting websites and products online, while web development focuses on creating and maintaining the websites themselves. However, there is often overlap between the two fields, as successful digital marketing efforts often require well-designed and functional websites.