Feed autodiscovery
From Xcri
The Feed Autodiscovery Pattern uses the existing autodiscovery technique in HTML to provide aggregators with a means to locate an XCRI feed for a provider.
To use it, the provider needs to include a Link tag in their HTML headers that points to the XCRI feed URL.
For example:
<link rel="feed" type="application/xcri+xml" href="/courses.xml"/>
Aggregators can then locate the XCRI feed by parsing the main web page for the provider.

