RSS, or really simple syndication, were the hip thing some 10 years ago when the social media was still in the embryonic stage. RSS feeds…
If you have multiple WordPress websites, you might want to show titles and excerpts of latest posts of one site on another. You can also use the RSS (Real Simple Syndication) feeds of other websites and show them on your own WordPress site. Use the code snippet blow to show RSS feed of any website in your WordPress blog.
WordPress is often used to create websites which do not need feeds (RSS feeds, atom feeds, etc). Sometimes we just want to mimic a HTML website. You can disable the feeds functionality of WordPress.