Overview
Search snippets and social cards come from meta tags: title, description, Open Graph, Twitter card, canonical, robots. This generator builds a copy paste block so you are not writing them from memory.
Tags do not rank a page by themselves. A beautiful OG image will not save thin content. Use this after the page actually says something useful.
Preview fields are estimates. Google rewrites titles often. Keep titles unique per URL. Duplicate titles across 300 tool pages is a quality issue.