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I spent twelve years selling on Amazon, from 2012 to 2024, learning to validate demand the hard way. If that decade taught me one expensive lesson, it’s this: building the thing is the easy part. Selling the thing is where projects go to die. These days I run a small portfolio of content sites, and every single one of them now starts the same way — I validate demand, before I build a page, record a video, or spend a dollar.
Let me show you what happens when I skip that step, because I did skip it, recently, and I have the receipt.
The CA$35.51 lesson
In October 2026 I got excited about a new project idea — a tool concept for online sellers, which I called Seller Cockpit. I did what most of us do when an idea feels good: I built first. Landing page, survey flow, email wiring — the whole funnel, polished and ready. Then I ran a small ad test to find the demand.
The demand wasn’t there. The test cost CA$35.51, brought in 72 visits, and produced exactly zero signups. Not “low” signups. Zero.
Now, CA$35.51 is cheap tuition as these lessons go — I’ve paid far more for far worse mistakes in my selling years. But look at the order of operations. The landing page and the full funnel were built before I knew whether a single person wanted the thing. The ad spend wasn’t the waste. The building time was. If I’d validated first, I’d have spent the same CA$35.51, learned the same lesson, and saved every hour that went into the funnel.
That’s the whole argument for demand validation in one story: the test is cheap, the build is not. So test first.
What “validate demand” actually means
This isn’t complicated, and it doesn’t require paid tools. When I say I validate demand before building anything, I mean three checks, in this order:
- 1. Are people already searching for this? I mine the autocomplete suggestions on the platforms where the audience lives. Autocomplete is free, real-time market research — those suggestions exist because thousands of people typed those words. If my topic doesn’t show up in any form in autocomplete, that’s a warning sign, not a challenge to be more creative.
- 2. Is the interest stable or growing? I look at the trend over time, not the spike of the week. A topic riding a two-week hype wave will be dead before my content ranks. A topic with a flat or rising line over a couple of years is a topic I can build on.
- 3. Is anyone actually buying? Search interest alone isn’t demand — demand means money moves. I cross-check against what’s visibly selling in the category: real products, real sales activity, real affiliate programs with real payouts. Curiosity is free. Buyers are the signal.
Only when all three checks pass do I pick an offer and start building. Demand first, product second, content third. Every time, in that order.
Why the order matters more than the effort
Most beginners do this backwards. They fall in love with a product, build content around it for a month, and then go looking for an audience — and discover the audience doesn’t exist, or doesn’t buy. Then they conclude “affiliate marketing doesn’t work.” It works fine. Their sequence was broken.
The sequence also protects your motivation. A month of building with zero feedback is where most projects die quietly. A small demand test gives you a signal within days: real people, real searches, real buying behaviour. You build on evidence instead of hope, and evidence is a much better fuel.
Does validation guarantee success? No, and anyone who tells you otherwise is selling you something. What it guarantees is that when a project fails, it fails small and early — at the testing stage, with a receipt like CA$35.51 and 0 signups, instead of after three months of building. My Seller Cockpit funnel is still sitting there, intact, costing me nothing. If the demand ever shows up, I can switch it on. Until then, the data said stop, so I stopped. That’s not a failure. That’s the system working.
What to do when the checks disagree
Sometimes two checks pass and one doesn’t. Searches are strong and people are clearly buying — but the trend is flat. Or interest is rising and searches are there, but you can’t find anyone selling to that audience successfully.
Flat is not dead. A flat trend on a topic with steady search volume and visible buyers is still a yes — it just means the topic isn’t fashionable, which is fine, because fashion is where competition lives. But a rising trend with no visible buyers is a no: it means attention without commerce, and attention without commerce is a hobby, not a market.
The strictest rule applies to search. If people aren’t asking about it in their own words, no amount of clever positioning will summon them. I can write the best guide in the world on a topic nobody types into a search box. Nobody will read it.
My pre-flight rule
Before I build anything new — a site, a channel, a funnel — I run the three checks above and write down what I found. If I can’t point to existing searches, a stable trend, and visible buying, I don’t build. No exceptions for ideas I “just know” will work. I knew Seller Cockpit would work, too.
If you want the exact checklist I run, it’s below. It’s short, it’s free, and it has saved me more money than any tool I own.
Get the free Demand-First Checklist — the three checks I run before I build anything, in the order I run them.