Schema markups are standardized pieces of code you embed in your website's HTML to label specific content types for search engines. Instead of letting Google guess what a paragraph means, schema tells it "this is a product price" or "this is a recipe cooking time" or "this is a local business address." The most common format is JSON-LD, which sits in a script tag and doesn't affect how your page looks to visitors. The main reason you use schema is to unlock rich results in search. A review schema can display star ratings directly in the SERP. An event schema shows the date and location. FAQ schema creates expandable dropdowns. These features make your listing more visible and clickable, often pushing competitors down the page even if they rank higher organically. Common schema types include Organization (for NAP and logo), LocalBusiness (critical for Ottawa or Toronto storefronts), Product (for ecommerce), Article (for blog posts), BreadcrumbList (for site navigation), and VideoObject. Google's rich result test tool shows you which markups qualify for enhanced displays, because not every schema type triggers a visual change. Schema doesn't directly improve rankings in the traditional sense. Google has confirmed it's not a ranking factor. But rich results increase click-through rates, and CTR influences rankings indirectly. A listing that gets 8% CTR instead of 3% sends stronger engagement signals over time. We've seen local service pages jump from position 4 to 2 after adding LocalBusiness schema purely because the map pack and reviews became more prominent. Implementation is straightforward. You can hand-code JSON-LD, use WordPress plugins like Rank Math or Yoast, or deploy it through Google Tag Manager. The key mistake is adding schema that doesn't match your visible content. If your page has no reviews, don't add AggregateRating markup. Google penalizes misleading structured data with manual actions. At Ottawa SEO, we validate every schema deployment with Google's testing tools before launch and monitor Search Console for structured data errors monthly.