How to verify a marketplace seller

Why verifying the seller matters

Cifas data shows that 37% of UK adults have been scammed on a second-hand marketplace, and that only 18% of victims ever recover their money (Source: Cifas). The single biggest predictor of a UK marketplace fraud isn’t the price or the listing — it’s the seller. A ten-day-old account selling a £450 iPhone is a different risk profile to a four-year-old Vinted reseller with 200 ratings. The check takes five minutes manually, or five seconds with the right tool.

The 5-step manual check (works on every platform)

1. 01

   Check account age first

   Less than 30 days is the highest-weight scam signal in TSB and Cifas data. Facebook shows joined-year on the profile; Vinted and Depop show member-since on the bio; eBay shows it on the seller-info page.

2. 02

   Read the written reviews, not just the stars

   Star count is gameable through fake accounts. Written reviews mentioning real item details (size, condition, packaging) are not. Look for 5+ specific written reviews from different buyers.

3. 03

   Reverse-image-search the listing photos

   Right-click any listing photo, "Search image with Google" (or use Google Lens on mobile). Genuine items: zero or one match. Scam listings: same image appears on stock sites, other countries, or older eBay listings.

4. 04

   Cross-check the same person on other platforms

   Real resellers leave a footprint — same display name on Depop and Vinted, same photos on eBay and Marketplace. A scammer almost always lives on one fresh account on one platform.

5. 05

   Ask if they have a Trust Passport

   A SilentID Trust Passport is the only UK marketplace badge that's portable, ID-verified by Stripe and aggregates ratings from every platform. If the seller has one, you can verify them in 5 seconds via QR.

Platform-by-platform verification cheat sheet

Facebook Marketplace

• Profile age: Tap the seller name → profile → “Intro” section shows joined-year.
• Friends and photos: Real accounts have years of friends and life photos. Empty profile = throwaway.
• Other listings: Tap “Marketplace” on their profile. The same item posted in three cities is a red flag.
• Mutual connections: A friend in common is a soft positive signal.
• What Facebook does NOT show: Identity verification, scam reports, ratings — there is no buyer-facing reputation system.

Vinted (and Vinted resellers)

• Member-since date: On the profile, top of the page. Less than 3 months = limited history.
• Star ratings + written reviews: Both. Look for 10+ written reviews on relevant categories.
• “Verified” badge: Means phone-number verified. Not an ID check.
• Sold listings: A real reseller has a consistent sold-history. A new account with one £200 item is suspicious.
• Description voice: Real resellers describe condition flaws. Marketing-copy descriptions are scraped.

Depop

• Followers vs following ratio: Real Depop sellers usually have more followers than they follow. Bot accounts have the opposite.
• Reviews tab: Read the 5-star ones AND the 1-star ones. Look for “item not as described” complaints.
• Bio link: A linked Instagram with years of posts is a positive trust signal. A blank bio is not negative — but adds nothing.

eBay UK

• Feedback score: Number in brackets next to the name. 100+ with 99%+ positive is a strong signal.
• Top-rated badge: A volume + low-defect-rate metric. Not an ID check, but a useful behaviour proxy.
• Member-since: Click the name → seller-info → join date. 5+ years is excellent.
• Negative feedback patterns: One negative is normal. Ten negatives mentioning the same problem (counterfeit, no-show) is a hard stop.

Gumtree

• Member since: Top of the seller’s ad page.
• Other ads: Tap “Other ads from [seller]”. Variety + sane prices = real seller. 30 identical-looking listings = factory.
• Phone vs message: A seller who only replies via WhatsApp and refuses to show a face on a brief video call is high risk for high-value items.
• What Gumtree does NOT show: Star ratings, verified ID. The platform has the lightest reputation system of the major UK marketplaces.

Manual check vs SilentID Seller Lookup

Red flags that should stop a transaction

• Account younger than 30 days and a price more than 30% below market.
• Seller refuses any payment method except bank transfer or PayPal Friends & Family.
• Asks for a deposit before viewing the item.
• Listing description is copy-pasted from a manufacturer page.
• Reverse-image search finds the photos on a stock site or another city.
• Seller pushes you off-platform to WhatsApp before agreeing the meet.
• Manufactured urgency: “three other people interested, decide in an hour.”
• The same item posted under multiple listings or multiple cities.

When a seller passes verification — what next

Verification reduces risk; it doesn’t eliminate it. Even a verified, high-TrustScore seller can have one bad day. The two finishing safety steps:

• Meet in a Safe Trade Zone. Several UK police forces (Greater Manchester, West Yorkshire, Met) run designated handover spots in station car parks. Otherwise, supermarket car parks at busy hours.
• Use PIN Pickup for payment. Money is held in the SilentID app until both sides confirm with a 6-digit PIN at the handover. Then it clears in seconds via Faster Payments. No bank transfer to strangers; no cash on the doorstep.

UK seller-verification stats

Related guides

• Free Scam Checker UK — Is It a Scam?
• Deal Scanner — Is this listing a fair price?
• Trust Passport — portable seller reputation
• Safe Payment for Marketplace Pickup (UK)