PubSubHubbub Hub

Business Profile

Core Value Proposition

PubSubHubbub Hub provides real-time feed update notifications via the PubSubHubbub protocol, hosted by Google.

Target Customer

{"Feed publishers","Feed subscribers","Developers integrating PubSubHubbub"}

Key Differentiator

{"Google-hosted PubSubHubbub Hub that supports PubSubHubbub 0.4 (and 0.3 with exceptions)","Advertises via both atom:link tags in feeds and Link headers (hub/self patterns)","Promoted as a free, decentralized PubSubHubbub protocol service"}

Implementation Timeline

Not specified

Pain Points

1Need to notify subscribers when new content is added to a feed
2Require a standards-based mechanism to advertise hub presence in Atom/RSS feeds
3Need tooling to subscribe, publish, and diagnose feed update flows

Key Features

1Conforms to PubSubHubbub 0.4 specification (0.3 with exception for permanent subscriptions)
2Supports advertisement of the hub via atom:link tag or via Link headers with hub and self URLs
3Allows publishing updates by sending an HTTP POST to the hub with hub.mode and hub.url parameters
4Provides hub diagnostics, subscribe/unsubscribe, and publish/debug interfaces
5Google-run hosted service; PubSubHubbub protocol is decentralized and free

Target Customer Industries

Competitive Advantages

1Hosted by Google, reducing the need for self-hosting
2Supports multiple feed advertisement methods (Atom/RSS compatible)
3Standards-based, free, and decentralized PubSubHubbub protocol

Key Benefits

1Real-time feed update notifications

2Standards-based integration with Atom/RSS feeds

3Multiple advertising methods (atom:link, Link headers)

4Diagnostics and debugging for subscriptions and published feeds

5Free, decentralized PubSubHubbub protocol

Additional Product Information

Product Description

A hosted hub that implements PubSubHubbub for notifying subscribers when feed content updates, using Atom/RSS feeds and hub protocols; operated by Google.

Target Market

Publishers and developers working with RSS/Atom feeds who want real-time update notifications to subscribers

Unique Value Proposition

Google-run, standards-compliant PubSubHubbub hub enabling real-time feed update notifications across feeds via standard advertising methods

Technical Requirements

Requires a feed URL and a callback URL for subscriptions; updates are delivered via HTTP POST to the hub with Content-Type: application/x-www-form-urlencoded; hub.mode and hub.url parameters; feeds can be advertised using atom:link tags or Link headers

Pricing Model

Free to use; no pricing information provided in the content

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