Breadcrumb Navigation: Breadcrumb navigation is a user interface element that displays the hierarchical path of the current page on a website. It helps users understand their location within the site and allows them to easily navigate back to previous pages. Breadcrumbs are typically displayed as a series of links, in a horizontal layout, separated by a symbol such as '>' or '/'. For example: Home > Products > Electronics > Smartphones. Breadcrumb navigation can improve the user experience and enhance search engine optimization (SEO) by providing clear internal links and aiding in website crawling.