There are many organizations that offer online digital marketing certificate programs. These programs typically cover a range of topics related to digital marketing, including search engine optimization (SEO), pay-per-click (PPC) advertising, social media marketing, email marketing, and analytics. Some popular providers of online digital marketing certificate programs include the Digital Marketing Institute, HubSpot Academy, and Google Digital Garage. These programs may be self-paced or include live virtual instruction, and they usually require a fee to enroll. Some universities and colleges also offer online digital marketing certificate programs.