Why Marketplace Listings Need Extra Scrutiny
Large marketplaces host millions of listings from many different third-party sellers, each of whom can set their own reference price for what looks like an identical product, which is why the same item can show very different 'percent off' badges across listings.
Checking Price History Where Available
Independent price-history tools that track a specific marketplace listing over time are one of the most direct ways to confirm whether a 'was' price reflects a real recent selling price rather than a one-day anchor.
Watching for Listing-Specific Red Flags
A 'was' price noticeably higher than every other seller's listing for the same product, combined with a recurring identical 'lightning deal' week after week, are both signals worth treating with caution.
Combining Checks for Confidence
Using price history alongside a category-benchmark discount check and a quick look at other sellers' listings for the same product gives a more complete picture than relying on any single signal alone.