Superfeedr
wifi signal with'superman' outline
HeadquartersSan Francisco, California,
United States
Area servedWorldwide
Founder(s)Julien Genestoux
Key peopleMark Cuban (investor) Betaworks (investor)
IndustryWeb application
ParentNotifixious, Inc.
URLsuperfeedr.com

Superfeedr is a feed API built on WebSub that is sometimes referred to as PuSH. It transforms a variety of feeds into a standardized RSS, Atom, or JSON format[1] and distributes "pushes" them via WebSub or XMPP. Feeds allow publishers to send notifications to subscribers when content is updated.

History

Superfeedr was launched in 2009 by parent company Notifixious. While Notifixious' website went offline sometime between September 23, 2009 [2] and January 5, 2010 [3] and is no longer available. Superfeedr has remained online and available and continues to refer to Notifixious in the terms of service for the site.[4]

Superfeedr was bought by Medium in 2016.[5]

Technology

PuSH is a protocol that relies on webhooks to push feed updates in real-time from publishers to subscribers in a decentralized manner. PuSH builds on existing protocols, ensuring that polling infrastructures currently in use are not changed or broken on implementation, and that polling is still available as a back-up. Superfeedr acts as a “default” hub that works for an RSS or Atom feed, whether the publisher supports the protocol or not.

Superfeedr also built a feed graph to identify updates in related feeds to avoid polling feeds too aggressively.[6]

Features

Publishers are web applications that host their WebSub hub with Superfeedr, while subscribers are applications that consume the feed API to aggregate feeds from across the web. Trackers, a new type of user application that subscribes to search queries, was added to Superfeedr in April 2015. Complex queries can be tracked by including or excluding search terms, exact or inexact match queries, and by using language filters. The tracking feature (a prospective search engine) is scaled to parse millions of feeds and their metadata to add extra filtering options.[7]

Funding

In late 2009, Mark Cuban and Betaworks invested in Superfeedr during a round of seed funding.[8]

References

  1. ↑ "LeWeb: Superfeedr – the lube for the real-time web?" TechCrunch, retrieved 4 May 2015
  2. ↑ "The Internet Archive". notifixio.us. The Internet Archive. September 23, 2009. Archived from the original on September 23, 2009. Retrieved August 15, 2016.{{cite web}}: CS1 maint: unfit URL (link)
  3. ↑ "The Internet Archive". notifixio.us. The Internet Archive. January 5, 2010. Archived from the original on December 25, 2009. Retrieved August 15, 2016.{{cite web}}: CS1 maint: unfit URL (link)
  4. ↑ "Terms of Service - Superfeedr". Superfeedr. Retrieved August 15, 2016.
  5. ↑ "Medium acquires Superfeedr, a real-time API that supercharges your feeds". TechCrunch. 2 June 2016. Retrieved August 29, 2017.
  6. ↑ Genestoux, Julien (11 October 2011). "Superfeedr". FLOSS Weekly (Interview). Interviewed by Newcomb, Aaron. 12 minutes in. Retrieved 14 June 2021. We built this thing that we call the feed graph that relates feeds together based on past updates but based also on links that we can find online, assuming that if one of them is updated, another one is going to be updated as well.
  7. ↑ "Tracking Feeds" Superfeedr, retrieved 2 May 2015.
  8. ↑ Miller, Alaska (November 8, 2009). "Mark Cuban And Betaworks Invest In Superfeedr". Business Insider. Retrieved August 15, 2014.
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