ThredUp Scam Checker checks listings, sellers and buyer messages for the patterns that lead to losses. From off-platform payment requests to fake shipping labels, we flag the move before you take it. Paste the listing URL or upload a screenshot into ScamGuard — you'll get a clear verdict, a plain-language reason, and the next step. Works on phone, desktop and WhatsApp.
Seller asks for your address to 'send a label', then claims to have sent the item with a fake tracking number.
Buyer asks to continue on WhatsApp and pay via direct transfer. Loses all marketplace buyer-protection coverage.
Forward anything suspicious related to ThredUp Scam Checker to ScamGuard on WhatsApp — works for text, links, screenshots, voice notes and PDFs.
Open WhatsApp scannerExplore every marketplace checker in the ScamGuard Global Scam Library.
Open libraryIt scores the listing and the buyer/seller messages against the patterns that lead to real losses on marketplaces — off-platform pivots, fake labels, overpayment refunds and more.
Not until you've checked. Leaving the platform usually voids any buyer-protection coverage and is the #1 sign of a planned scam.
Yes — free anonymous checks.
Yes. Facebook Marketplace, eBay, Gumtree, Craigslist, OfferUp, Etsy, Depop and many more.
1 free check, no signup needed. Then create an account for unlimited investigations.
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