If lucrative keywords are the output of keyword research, seed keywords are the input. Long-tail keywords (topical and supporting)Long-tail keywords are search queries that get a small number of searches per month. Targeting long-tail keywords is a common tactic in SEO:They’re less competitive than the short- or middle-tail (however, not all long-tail keywords are easy to rank for). It’s an important difference because it only makes sense to target topical long-tail keywords. Use your competitor’s keywords as seed keywords for research.