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head gasket sealer
Skip itA concentrated shelf (top 5 take 86% of clicks) — this niche doesn't clear our bar today.
Quality gap
Incredible4.0★avg incumbent rating — lower means beatable quality
Returns
Great1.0%return rate — above 5% kills the launch gate
Conversion
Great11.4%search→purchase rate — share of searches ending in a sale
Avg price
Great£21.27avg listing price — sweet spot $15–$100
Price range
Good£6.23–£32.47cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay2,238.67avg incumbent reviews — the moat a new listing must climb
Market size
Okay£127K£127K/yr · 52K searches
Growth
Bad-15.7%90-day search growth — must beat 0% to launch
Brand share
Bad94%top-5 brand share — brand-locked demand
Competition
Bad86%top-5 click share — a locked-up shelf
Signals Quality Gap