Digital marketing hashtag is used by entrepreneurs, startups, and companies when they resort to online marketing. The hashtag is used to show readers that the content is marketing content. digitalmarketing is also used by trainers and mentors when they want to share tips on online marketing. This hashtag is ubiquitously used by digital marketers and digital marketing companies. When it comes to companies, it is primarily used to show their expertise in digital marketing so that they can acquire new clients.