Keyword Selection Matrix
Choose keywords where relevance, search volume, and low competition intersect
Keyword selection is not a pure volume game. Targeting the highest-volume keywords is a common and costly mistake — those terms are dominated by sites with enormous domain authority that a new or small site cannot displace. The right keyword sits at the intersection of three variables: high relevance (the audience seeking this term is your target market), adequate volume (enough searches to make ranking worthwhile), and low-to-moderate competition (attainable ranking position given your current domain authority).
The practical implication is a staged approach. In the early phase of building domain authority, target long-tail keywords — three to five word phrases — where competition is thin and the specific intent of the searcher closely matches your offering. These terms convert better anyway because the searcher is further along in their research. As authority builds, compete for shorter, higher-volume terms.
The book presents this as a three-axis evaluation: any candidate keyword that scores high on all three axes simultaneously is a priority target. If relevance is low, the traffic won't convert. If volume is too low, ranking doesn't move the needle. If competition is too high, ranking is not achievable at your current authority level. The matrix makes keyword prioritization explicit and systematic.
- High search volume alone is not a good keyword criterion — volume without relevance produces unqualified traffic.
- Long-tail keywords convert better than head terms because they signal more specific intent.
- Start where you can win and expand — build domain authority on attainable terms before attacking competitive ones.
- Competition in organic search is a function of the domain authority of current page-one results, not just the number of results.
- Keyword targeting should be re-evaluated quarterly as your domain authority grows and the competitive landscape shifts.
- Seed the keyword list from customer languageInterview customers and review support tickets, sales calls, and forums to identify the exact phrases your target market uses to describe their problems. These seed terms anchor your keyword research in real buyer language, not marketing jargon.Pro tipThe phrases customers use in calls and emails are often better keyword targets than anything a keyword tool suggests — they reflect exactly how the problem is described when searching.
- Expand with a keyword research toolEnter seed terms into a keyword research tool (Google Keyword Planner, Ubersuggest, SEMrush) to find related phrases, volume data, and competition estimates. Expand the list to 50–100 candidates before filtering.WarningVolume estimates from keyword tools are approximations. Use them for relative comparison between terms, not as precise traffic forecasts.
- Score each keyword on the three axesRate each candidate keyword on relevance (1–5: does searcher intent match our offering?), volume (1–5: is monthly search volume sufficient?), and competition (5–1: 5 = easy to rank, 1 = very hard). Calculate a composite score and sort descending.Pro tipFor competition scoring, manually check who currently ranks on page one for the term. If all results are major domain authorities (Wikipedia, Forbes, Amazon), score competition as 1 regardless of what the tool says.
- Assign priority keywords to content slotsMatch top-scoring keywords to specific planned content pieces. Every content slot should have an assigned primary keyword before the brief is written. This ensures the editorial calendar is systematically building search coverage, not randomly addressing topics.WarningDon't assign the same keyword to multiple pages — competing against yourself is wasteful. Use a keyword map to track which term is owned by which page.
- Re-evaluate the matrix quarterlyAs your domain authority grows, previously-difficult terms become attainable. As competitors create content, some easy terms get more competitive. Quarterly review ensures your keyword strategy advances with your authority level.Pro tipAdd a column for 'ranked?' to the keyword matrix. Once you rank in the top 5 for a term, graduate it and add a new target to maintain forward momentum.
The authors contrast two keyword strategies: targeting 'marketing software' (very high volume, very high competition, broad intent) vs. 'small business email marketing software for nonprofits' (low volume, low competition, very specific intent). The long-tail term converts at 5–10x the rate of the head term despite a fraction of the traffic.
The book describes a B2B software company that started with 50-search-per-month long-tail terms they could rank for immediately. Over two years, each ranked page built domain authority that then supported ranking for progressively more competitive terms. By year three, they ranked for terms that would have been impossible to target on day one.
The keyword selection matrix synthesizes lessons from Google AdWords keyword research — which made search volume data publicly available for the first time — with observations about which content actually ranked and earned leads vs. which content had high impressions but low conversions. Halligan and Shah noted that many early SEO practitioners optimized for volume alone and were puzzled when high-traffic pages generated no leads. The matrix adds relevance and competition as explicit filters to address both problems.