Every SEO guide tells you to build backlinks. Few explain why half the links you get won't move your rankings at all, and some might actually cause problems.
Here's what I've learned watching e-commerce sites try to climb search results for competitive product keywords.
Links That Actually Help
Editorial links from relevant sites make a difference. When a home improvement blog links to your power tools category because they genuinely recommend your product selection, that carries weight. Google's gotten pretty good at recognizing when a link exists because someone thought your content was worth referencing.
I watched a kitchenware store get linked from three cooking blogs—not huge sites, maybe 15,000 monthly visitors each—and their rankings for "carbon steel pans" jumped from position 24 to position 8 over two months. The connection between link relevance and ranking improvement was obvious.
Links from industry directories that real people actually use also help. Not the 500-listing spam directories, but the curated ones where potential customers might actually find you.
The Frustrating Reality
Most links don't do anything. That guest post you wrote for a random blog that accepted your pitch immediately? Probably worthless. Google can tell when links exist purely for SEO rather than genuine editorial reasons.
Buying links from link farms or "SEO services" that promise 50 backlinks for 200 bucks? You're either getting nofollow links that pass zero authority, or you're risking a manual penalty that tanks your entire site.
The hardest part is that good links take real work. You need to create something link-worthy—detailed buying guides, original research, tools that help people—then reach out to sites that might actually care. Most ignore you. It's slow and often disappointing.
What Nobody Mentions
Your internal linking structure matters more than most external links you'll get. How you connect your category pages, product pages, and content pages determines how authority flows through your site. An outdoor gear retailer I know restructured their internal links and saw rankings improve across 40 product categories without gaining a single external link.
The Practical Take
Focus on earning five good links rather than building 100 mediocre ones. Create content that solves actual problems your customers have. Reach out to relevant sites with something genuinely useful to offer. Accept that most won't respond. It's tedious work that accumulates value slowly, but that's how authority actually builds in competitive e-commerce niches.