Opinions expressed by Entrepreneur contributors are their own. When e-commerce brands come to me saying organic traffic has flatlined, the problem is seldom the homepage or the blog. It’s the product pages. These pages should be doing the heaviest lifting in search — they carry purchase intent, they match long-tail queries and they’re the closest thing to a conversion your SEO strategy can deliver. But most e-commerce brands treat them as an afterthought. Your product pages are your most valuable SEO real estate — treat them that way. Most founders pour their SEO energy into blog content and homepage optimization while their product pages sit with thin copy, no structure and zero differentiation from every other retailer selling the same item. Google’s algorithm can tell the difference between a product page that adds value and one that exists purely to hold an “Add to Cart” button. If your product pages aren’t pulling their weight in organic search, one or more of these five mistakes is likely the reason.…