Google Search organic results now expose stacked deep links

When Google groups several results from a single site into one stacked block ("More results from this site"), the Google Search API now returns that block as a single organic result instead of repeating the same domain many times.

The grouped deep links are preserved under a new sitelinks.expanded array on the parent result:

"sitelinks": {
  "expanded": [
    { "title": "L&B Spumoni Gardens", "link": "https://example.com/spumoni" },
    { "title": "L'Industrie Pizzeria", "link": "https://example.com/lindustrie" }
  ]
}

This sits alongside the existing sitelinks.inline array; either is omitted when empty. No request changes are required, and the field is additive — existing integrations are unaffected.

See the Search API response schema for details.