In search engine optimization (SEO), GMB stands for Google My Business. It is a free service by Google that allows businesses to create and manage a digital profile. This profile appears in search results and Google Maps when a user makes an online search for a product or service. GMB displays the essential information about a business, such as name, address, phone number, website, and more. A well-optimized GMB profile is essential for the success of local SEO efforts.