Rich Site Summary (RSS) is a format that allows people to access a site’s content in a convenient way.
RSS was designed around the concept of syndication, which means that it allows publishers to share their content with other sites via an XML feed.
RSS allows you to easily keep up with your favorite websites without visiting them directly.
When you subscribe to an RSS feed, the information you see is automatically updated with new content. So there’s no need to check sites manually.