Breadcrumbs serve as a helping tool that keeps track of the path you take to visit different pages. Using breadcrumbs, you can know the current location of a page on a website.

Breadcrumbs are used to find out the current page's path in a navigation hierarchy.

Here is a sample code:

<ol class="breadcrumb">
  <li><a href="#">Home</a></li>
  <li><a href="#">Library</a></li>
  <li class="active">Data</li>
</ol>