RSS, or Really Simple Syndication, refers to syndicated web feeds that use either the RSS or Atom standard formats to send messages to subscribers. In Presto, RSS is the mashable type for these web feeds regardless of the actual format that the feed uses. For information on registering RSS or Atom feeds, see Register Syndicated Feeds (RSS/Atom).

Presto can be configured to normalize the responses for web feeds to a single format, making it easier to use these responses in mashups. See Normalization and Presto Support for RSS/Atom Formats for more information on normalization and the syndication formats that Presto supports.

RSS mashables may use HTTP or HTTPs. Like some other mashable information sources, Presto supports secure communication with RSS mashables using these security profiles:

Presto administrators can also add custom security mechanisms to handle specific information source security requirements. See Configure Secure Connections for Mashables for more information.

Presto administrators can also control the HTTP response headers for syndicated web feeds or timeouts for connections.