Meet the normal search requirements
Google states that pages need to be indexed and eligible to appear in Search before they can be shown as supporting links in AI features. The practical foundation remains crawl access, clear content, appropriate status codes, useful internal links, and compliance with spam policies.
Submitting a sitemap can help discovery but does not guarantee indexing or inclusion. Likewise, a page that is technically indexable still has to provide enough value for Google to choose it for a particular search experience.
- Crawl access
- Index eligibility
- Spam policy compliance
