Deep linking refers to the practice of linking to a specific page or piece of content within a website or app, rather than just the homepage. This allows users to directly access the desired content, bypassing the need to navigate through multiple pages. It also enables seamless integration between different platforms, such as social media and mobile apps, by directing users to a specific location within the app. Deep linking enhances the user experience by providing quick and easy access to relevant information, and can also be used for marketing purposes to drive traffic to specific pages.