This plugin implements the WebSub protocol (formerly known as PubSubHubbub) for WordPress. It enables real-time notifications when your blog is updated and provides a subscriber API for other plugins to consume WebSub-enabled feeds.
Publisher Features
When you publish or update a post, this plugin automatically notifies WebSub hubs, which then distribute the update to all subscribers in real-time.
- Sends realtime notifications when you update your blog
- Supports multi-user installations (WordPress MU)
- Supports multiple hubs
- Supports all feed formats used by WordPress (Atom, RSS2, RDF)
- Adds
<link rel="hub">and<link rel="self">declarations to feeds and HTML
Subscriber Features
The plugin provides a subscriber API that allows other plugins (like feed readers) to subscribe to WebSub-enabled feeds using WordPress hooks.
- REST API callback endpoint for subscription verification and content delivery
- Hub discovery from topic URLs (HTTP Link headers and feed content)
- HMAC signature verification (SHA1, SHA256, SHA384, SHA512)
- Full lifecycle hooks for integration with other plugins
Supported Specifications
Default Hubs
By default this plugin will ping the following hubs:
Please contact us if you operate a hub that you would like to be included as a default option.