Background
Link intersect, sometimes called a "link gap analysis," is the most efficient outreach workflow in SEO. Instead of cold-pitching every blog you can think of, you start with sites that have already proven they link to companies in your space. If they linked to your competitor, they'll consider linking to you with the right pitch.
Ahrefs popularized this workflow with their multi-domain "Link Intersect" report behind a $129+/month paywall. We expose the same data, sourced from our link graph, for free, with up to 100 prospects per check.