Every post uses its SEO Title/SEO Description (or, if blank, the post title) for the page metadata and its Social image (or the featured image) for social sharing. Posts written by the AI additionally carry structured data (article schema with headline, description, image, publish date and your business as author/publisher) and the appropriate Open Graph/Twitter card types. The Blog Post Header module also has a Quote used for when a user shares the post field. Posts are included in the sitemap (/sitemap.xml) automatically.