https://www.kestrel.watch/blog Practical methods for reading a market before you enter it. en https://www.kestrel.watch/blog/how-to-know-if-a-product-will-sellhttps://www.kestrel.watch/blog/how-to-know-if-a-product-will-sellFri, 10 Jul 2026 08:00:00 GMT"Will it sell?" decomposes into four checkable questions — ads, search, retail, chatter. How to read each signal, what disagreements mean, and a one-hour pass to run before you buy inventory. https://www.kestrel.watch/blog/meta-ad-library-product-researchhttps://www.kestrel.watch/blog/meta-ad-library-product-researchFri, 10 Jul 2026 08:00:00 GMTA running ad is a bill someone chooses to keep paying. A field method for reading competitor ads — age, variation clusters, angle — as market evidence before you spend anything. https://www.kestrel.watch/blog/google-trends-product-researchhttps://www.kestrel.watch/blog/google-trends-product-researchFri, 10 Jul 2026 08:00:00 GMTGoogle Trends shows direction, not volume. How to read slope, volatility and seasonality — and dodge the misreads that put sellers into a market right as the spike ends. https://www.kestrel.watch/blog/check-product-demand-on-amazonhttps://www.kestrel.watch/blog/check-product-demand-on-amazonFri, 10 Jul 2026 08:00:00 GMTBSR is category-relative, review counts are mostly history, and review velocity is the closest public proxy for current sales. A field method for reading Amazon's receipts before you source inventory. https://www.kestrel.watch/blog/reddit-product-researchhttps://www.kestrel.watch/blog/reddit-product-researchFri, 10 Jul 2026 08:00:00 GMTNobody writes a 400-word rant about a dog harness for your benefit — which is why it counts as evidence. A field method for turning Reddit threads into product research you can actually weigh. https://www.kestrel.watch/blog/tiktok-trend-spike-or-signalhttps://www.kestrel.watch/blog/tiktok-trend-spike-or-signalFri, 10 Jul 2026 08:00:00 GMTA trend that dies in three weeks and one that runs for years look identical in week one. A field method for reading structure, comments, and three durability checks before you commit inventory. https://www.kestrel.watch/blog/how-to-tell-if-a-product-is-saturatedhttps://www.kestrel.watch/blog/how-to-tell-if-a-product-is-saturatedFri, 10 Jul 2026 08:00:00 GMTForty competitors is a headcount, not a verdict. Four public symptoms — ad churn, price compression, creative convergence, flat demand — tell you whether a market has actually closed. https://www.kestrel.watch/blog/test-product-demand-for-freehttps://www.kestrel.watch/blog/test-product-demand-for-freeFri, 10 Jul 2026 08:00:00 GMTFour free checks — competitor ads, search direction, Amazon proof, community chatter — that kill bad product ideas in an hour of desk research, before you spend anything on ads or inventory. https://www.kestrel.watch/blog/how-to-know-if-a-niche-is-profitablehttps://www.kestrel.watch/blog/how-to-know-if-a-niche-is-profitableFri, 10 Jul 2026 08:00:00 GMTDemand, spend, and pain — a profitable niche shows all three in public evidence. How to check each with free tools, size the market in honest ranges, and compare candidates before you commit. https://www.kestrel.watch/blog/product-validation-scorecardhttps://www.kestrel.watch/blog/product-validation-scorecardFri, 10 Jul 2026 08:00:00 GMTA weighted four-axis rubric for grading product ideas before you enter a market — demand, competition, retail proof, community pull — with thresholds that force a kill-or-continue call.