What is RSS and its function?

RSS can have different meanings. One of the most common uses of RSS is Really Simple Syndication, which consist in the so called "RSS feeds". RSS feeds contain metadata about content hosted on a website, a blog or a podcast. This metadata typically include titles, text, images, media files, and other information. RSS feeds are very common in online newspapers and blogs so their content can be ingested by applications called "aggregators" that collect information from different sources into a single place. An example of aggregator is Feedly (feedly.com). RSS feeds are also the main technology powering podcasting. Every podcast requires an RSS feed to be distributed to the main podcast directories including, but not limited to, Apple Podcasts, Google Podcasts and Spotify. Typically, the end user does not have to deal directly with RSS feeds as in most of the cases they are generated automatically. For instance, Wordpress, a well-known blogging platform, automatically generates one or more RSS feeds containing all the posts in a given blog. Another example are podcast hosting companies, that allow their users to upload media files as episodes, along with information such as titles, description, season and images, and then they automatically generate podcast RSS feeds on behalf of their users. RSS feeds are not to be confused with RSS.com, which is the brand of a popular podcast hosting and distribution company.

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