unfurl

 unfurl  is a jargon verb usually applied to URLs, meaning to retrieve (or create or both) some minimum amount of information from or about the contents of a URL, for the purpose of displaying a preview (like a link-preview) or context (like a reply-context).

IndieWeb Examples
See:
 * link-preview
 * reply-context

Silo Examples
 unfurling  is what Slack calls link-preview per https://api.slack.com/docs/unfurling

Articles

 * 2022-04-04 Link Contexts In Eleventy "The process of scraping metadata from URLs for display purposes is called 'URL unfurling' and implementing it efficiently on an Eleventy based website is not entirely trivial, especially when you're trying to save your Netlify build minutes"