Most AI crawlers do not run JavaScript. If a price, stock label, service list or opening hours are added by a script, they never see them. Tell the tool what kind of business you run and what type of page you are checking, and it fetches the raw HTML the way a crawler does, tests the facts that page should carry, and tells you what to fix first. A shop's product page is tested for price, stock and specs; a law firm's service page for what the service covers, fees and contact details.