Shopify delivers good foundational SEO, especially for merchants who lack technical resources. The platform generates clean, crawlable URLs, auto-creates XML sitemaps, enforces HTTPS, and produces mobile-responsive themes by default. Core Web Vitals scores typically land in acceptable ranges on a fresh install, and the CDN handles global delivery well. For most product-focused stores under 10,000 SKUs, Shopify won't be your SEO bottleneck. The problems show up when you scale or need custom structures. You can't control URL hierarchies beyond collections and products—no true subfolder nesting for category trees, which matters for large catalogs competing on informational queries. The built-in blog is functional but limited compared to WordPress; you get basic formatting and tagging, but advanced content strategies often require workarounds or third-party apps. Speaking of apps, every Shopify store we audit has 8–15 apps installed, and each one injects scripts. That compound load kills page speed fast, especially on product pages where conversion happens. Shopify also generates duplicate content by default—collection pages, tagged pages, and search result pages all index unless you configure canonicals and robots meta tags correctly. The theme layer handles most of this, but cheaper themes skip proper schema markup for products, reviews, and breadcrumbs, leaving easy wins on the table. You'll need to edit liquid templates or add schema apps to fix it. At Ottawa SEO, we've ranked Shopify stores for competitive keywords in verticals from outdoor gear to SaaS tools. The wins come from ruthless app pruning, image compression, custom schema implementation, and building content hubs off-platform (on subdomains or microsites) when the blog can't carry the load. Shopify works when you treat it as a transaction engine and supplement weaknesses with external content infrastructure. If you're choosing between Shopify and WooCommerce purely for SEO, WooCommerce gives more control but demands more maintenance. Shopify trades some ceiling for a higher floor, which suits most commercial operations under $5M annual revenue.