Full or summarised text format published by a website that allows users to subscribe or follow a website without necessarily having to revisit the site to see the updated content.
RSS, commonly expanded as Rich Site Summary or Really Simple Syndication, is a means for websites to publish and/or syndicate their content.
Extending the XML format, RSS allows a visitor to stay up-to-date with a website's new articles and content via an application that reads the published feed.
The image above is the established symbol of an RSS presence on a website.