An RSS feed element is automatically added to the sidebar of any blog you create. The RSS feed allows blog visitors to receive automatic updates about your blog if they are using a feed reader service or app.
The link to the feed looks like this:
If you accidentally delete it or don't see it, you can add it back by dragging a Blog Feed element to the sidebar.
RSS feeds are only available for the sidebar on blog pages and can't be used on other types of pages. If you create more than one blog on your site, each blog will have its own unique feed.