Tagged “tools”
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What an Automated Deal Feed Cannot Check for You
A feed can tell you a number moved. It can't tell you the thing behind that number is the thing you wanted. Five checks only a person can make.
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Why a Screenshot of a Price Proves Almost Nothing
A picture of a price carries a number and nothing you can check it against. Here's what a machine-readable listing records that a screenshot throws away.
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How a Deal Alert Knows the Price Changed
Nothing tells the alert a price moved. Something asked, on a schedule someone budgeted for — which is why the timestamp means less than it looks.
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How Do Coupon Browser Extensions Make Money?
Affiliate commission, paid on the last click before checkout. Understanding that one mechanic explains everything these extensions do — and don't do.
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How Price Trackers Get Their Data — and Where It Breaks
Price history tools are sampled, not recorded. Knowing how the sampling works tells you which of their claims to trust and which to ignore entirely.
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How Cashback Portals and Apps Make Money
They keep part of an affiliate commission and hand you the rest. That explains the waiting periods, the thresholds, and the exclusions in the small print.