Seed-based discovery surfaces 4x more terms than competitor-based

Seed-based discovery surfaces 4x more terms than competitor-based
Two discovery tactics, same niche. We seeded one run with 5 head terms, the other with 3 competitor domains, and counted unique usable keywords.
— Seed expansion (matching terms): ▇▇▇▇▇▇▇▇ 3,400 raw, 22% usable after intent filter
— Competitor gap (their rankings you lack): ▇▇ 820 raw, 61% usable
— Overlap between the two methods: only 14%
— Competitor method skews toward proven, already-monetized terms
So what: seed expansion gives volume and white space; competitor gap gives validated, lower-risk targets. Run both. The 86% non-overlap is the whole point.
Benchmark of the week: competitor-gap keywords convert to traffic ~2.3x faster on average because someone already proved the SERP rewards that intent.