Atom IDs and RFC 4287: Choosing Permanent Feed and Entry Identifiers
Understand Atom’s required id elements, choose permanent URI values, and preserve identity across domain changes, imports, and format conversions.
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Feed Fundamentals articles from RSSid.com covering feed identity, publishing operations, syndication formats, and infrastructure.
Understand Atom’s required id elements, choose permanent URI values, and preserve identity across domain changes, imports, and format conversions.
Learn what the RSS guid element means, how isPermaLink changes interpretation, and how to preserve item identity through edits and migrations.
A feed URL tells a reader where to fetch. A feed ID tells a system which feed it is dealing with, even when locations, titles, and hosts change.