Competitive intelligence built for solo eBay sellers
Three rivals can trade the same BIN hero inside a five-hour window on eBay while a Cassini drag pushes you off the first results page. Shelfhawk watches the Best-Match floor, the BIN-vs-auction gap, Top-Rated-Plus seller signals, and Promoted-Listings rotations overnight — so the pricing move you wake up to is the move you've already got a counter for.
Three rituals that compound into a calmer morning.
BIN floor wars, auction reserve drift, and shipping-subsidy flips are the three signals eBay sellers actually move on. We log every BIN undercut, every Promoted-Listings bid shift, and every Top-Rated-Plus undercut with timestamp, delta, and the listing-state reason — so you see the pricing war before Cassini re-weights the result page.
eBay's 'Only N left' badge lags the listing — and an out-of-stock rival on a fitment-coded SKU can route search demand to your BIN for 24 to 72 hours. We flag it the morning it happens, with the restock estimate and the Cassini score drag that rides along with it.
A rival rotating a Promoted-Listings angle, refreshing the Storefront header, or swapping the first photo on a hero SKU is Q4 strategy telegraphed six weeks early. New rival creative is captured overnight and dropped into your morning briefing next to yours — so you spot the angle before the holiday BIN peak does.
What shows up in your morning briefing
Three signals, one plain-English memo, before 07:00.
A condensed sample of the format every Shelfhawk eBay seller wakes up to — auto-logged overnight, every entry tone-tagged so you absorb threat level before you read the detail.
Sample briefing · eBay marketplace morning
Free-shipping flip sunk effective delivered price to $26.40. A six-dollar gap from your hero BIN. Approve a match or pre-empt with a free returns counter before 09:00 or eat a Cassini drag on your own listing.
$28.90 opening bid, $1 BIN-or-best-offer ceiling. Three rivals trading inside five hours on a single fitment-CPU hero SKU — the BIN-vs-auction gap just opened wide enough to break your Cassini rate.
Likely relist-supplier backorder. Their Top-Rated-Plus seal still holds. Demand likely rolls to you in 24–72 hours — review your inventory cover before the dip absorbs and ride the BIN window quietly.
New first-photo swap and Storefront header edit captured overnight. First gifting-angle listing from Hearthwood in the last 90 days — Q4 strategy telegraphed six weeks early in one eBay rotation.
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