KWDens
The KWDens Score is a 0–100 composite metric that combines a keyword's search volume, trend momentum, and competition level into a single prioritisation number. A score of 74 means Strong opportunity; 42 means Moderate; 18 means Watching; below 10 means Avoid.
What Does Each Score Component Measure?
Volume (V) — Logarithmic, not linear
Volume is weighted logarithmically because the practical difference between 1,000 and 10,000 searches per month matters far more than the difference between 90,000 and 100,000. A keyword with 6,600 monthly searches is not 66× better than one with 100 searches — it is more like 4× better in practice. The log transformation reflects this diminishing marginal value.
Trend (T) — 12-month momentum multiplier
Trend is the percentage change in relative search interest over the last 12 months. A keyword with +21% trend gets a meaningful upward multiplier; one with −3% trend gets a downward discount. This reflects the strategic difference between a growing category (where early content can compound) and a declining one (where content investment may not recoup over time).
Competition (C) — Linear discount
Competition is the Google Ads competition index: the proportion of keywords in the category with at least one active bid. High competition means many advertisers are actively bidding, indicating a commercially valuable but contested keyword. The discount is linear (1 − C/100), meaning a competition index of 80 reduces the raw score by 80%. Competition is a proxy for commercial intent and targeting difficulty combined.
What Are the Score Tiers?
- Strong (61–100) — High volume, favourable trend, manageable competition. These are primary targeting candidates: use the dominant variant in page titles, H1s, and URLs.
- Moderate (31–60) — Decent metrics on at least two dimensions with one trade-off. Worth including as secondary targets or in supporting content.
- Watching (11–30) — Currently weak on volume, trend, or competition. Monitor for change — a Watching keyword that moves to Moderate after trend improvement is a forward-looking opportunity.
- Avoid (0–10) — Low opportunity relative to effort. Typically low volume, declining trend, or extremely high competition — or all three.
A Worked Example: 'Invoicing Software' Cluster
Running variant density analysis on "invoicing software" produces five variants with notably different scores despite similar volume levels. The score separates them meaningfully:
| Variant | Est. Volume / mo | 12m Trend | Competition | KWDens Score | Tier |
|---|---|---|---|---|---|
| invoicing software | 6,600 | +12% | Medium | 76 | Strong |
| invoice software | 4,400 | +8% | Medium | 71 | Strong |
| invoicing app | 1,900 | +21% | Low | 64 | Strong |
| billing software | 2,200 | −3% | High | 38 | Moderate |
| invoice generator | 8,100 | +5% | High | 42 | Moderate |
Notice that "invoice generator" has the highest raw volume (8,100/mo) but scores only 42 (Moderate) because competition is High. "Invoicing app" has the lowest volume (1,900/mo) but scores 64 (Strong) because competition is Low and the trend is the fastest-growing (+21%). The score resolves the apparent paradox: volume alone is a misleading guide to opportunity.
What the KWDens Score Does NOT Measure
The score is an opportunity signal, not a ranking predictor. It does not account for:
- Your domain authority or existing ranking positions
- The quality and depth of competing content for the keyword
- User intent match — a high-scoring keyword may attract informational traffic that does not convert for your use case
- Local or personalised ranking factors
- Seasonal volume spikes not captured in the 12-month trend window
Frequently Asked Questions
- What is the KWDens Score?
- The KWDens Score is a 0–100 composite keyword opportunity metric calculated as: normalize(log(Volume) × (1 + Trend/100) × (1 − Competition/100)). It combines search volume (logarithmic), 12-month trend momentum, and competition level into a single number to enable fast prioritisation without manually comparing multiple columns.
- Why does KWDens use logarithmic volume in its score formula?
- Logarithmic scaling reflects the diminishing practical difference between very large volumes. The difference between 1,000 and 10,000 monthly searches is strategically much more significant than the difference between 90,000 and 100,000. Without log scaling, the highest-volume keywords would dominate rankings even when they carry impractical levels of competition.
- What is a good KWDens Score for a target keyword?
- A score of 61 or above (Strong tier) is a clear primary target. Scores of 31–60 (Moderate tier) are worth including as secondary targets. Scores below 31 (Watching and Avoid tiers) should be monitored rather than actively targeted unless there are specific strategic reasons to pursue them. These thresholds are relative — the absolute score number matters less than your keyword list's ranking by score.
- Is the KWDens Score the same as keyword difficulty?
- No. Keyword difficulty (used by Ahrefs, Semrush, and Moz) measures how hard it is to rank organically based on the domain authority and backlink profiles of existing ranking pages. The KWDens Score measures the economic opportunity of the keyword: its volume, growth momentum, and advertising competition. They are complementary metrics that answer different questions.
- Does a high KWDens Score guarantee organic rankings?
- No. The KWDens Score identifies keywords with strong demand, positive trend momentum, and manageable competition — it does not predict ranking position. Organic rankings depend on content quality, domain authority, technical SEO, user engagement signals, and many other factors not included in the score formula.