A footer is a section at the bottom of a webpage or document that typically contains important information. This can include copyright notices, contact details, links to privacy policies, and navigation links to other parts of the site. Footers help users find essential information quickly without scrolling back to the top. In web design, footers are often consistent across all pages of a website, providing a uniform experience. They can also include social media icons, allowing users to connect with the brand on platforms like Facebook or Twitter. Overall, footers enhance usability and accessibility for visitors.