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Grout Sponge
Skip itA concentrated shelf (top 5 take 82% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible16.4%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Review moat
Good510avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Market size
Okay$161K$161K/yr · 116K searches
Price range
Okay$3.90–$20.54cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+5.1%90-day search growth — must beat 0% to launch
Brand share
Bad90%top-5 brand share — brand-locked demand
Avg price
Bad$8.45avg listing price — sweet spot $15–$100
Competition
Bad82%top-5 click share — a locked-up shelf