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iron deficiency test kit
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.2%return rate — above 5% kills the launch gate
Quality gap
Incredible4.0★avg incumbent rating — lower means beatable quality
Conversion
Great9.4%search→purchase rate — share of searches ending in a sale
Review moat
Good509.5avg incumbent reviews — the moat a new listing must climb
Market size
Bad£67K£67K/yr · 116K searches
Avg price
Bad£6.08avg listing price — sweet spot $15–$100
Growth
Bad-17.6%90-day search growth — must beat 0% to launch
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad£4.91–£6.74cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals Quality Gap