Spot risky buyers before you ship.
Seller Signal adds a simple risk badge next to eBay usernames and shows a clear summary: signals, unique sellers, recency, and a weighted score built for anti-spam.
Risk level: Medium
Score uses trust weighting + time decay so fresh, credible reports carry more impact than old noise.
Built for real seller decisions
Not just a counter — Seller Signal is a trust system with anti-spam weighting and moderation.
Trust-weighted scoring
New users have less impact. Trusted reporters matter more. Helps stop spam and fake reports.
Time decay
Older reports carry less weight. Fresh patterns rise to the top so you can react quickly.
Disputes + moderation
Buyers can dispute with proof links. Admin actions are logged for auditability and fairness.
Clear risk level
Low / Medium / High summarises the score. See confidence based on independent sellers.
Extension + Mobile lookup
Desktop badge for speed, plus a mobile-friendly lookup page for quick checks on the go.
Safer by design
Aggregated watchlist data, rate limits, and moderation reduce abuse and improve reliability.
How it works
Fast for sellers, fair for everyone. Reports are weighted, decayed over time, and moderated.
Check a username
On desktop, Seller Signal shows a badge next to eBay usernames. On mobile, paste into lookup.
See the full summary
Signals, unique sellers, recent activity, risk level, and weighted score in one view.
Improve the network
Submit reports responsibly. Trust tiers + rate limits reduce spam and boost signal quality.
Pricing
Start free. Upgrade for deeper history, category breakdowns, and higher limits.
- ✓ Risk badge + basic summary
- ✓ Mobile username lookup
- ✓ Submit signals (standard limits)
- ✓ Dispute system access
- ✓ Signal timeline + history
- ✓ Category breakdown + weighting
- ✓ Recent spike detection
- ✓ Higher lookup/report limits
- ✓ Priority moderation review
- ✓ Shared team watchlist
- ✓ Multiple seller accounts
- ✓ Admin dashboard access
- ✓ Audit logs + reporting tools
Try Seller Signal in 10 seconds
Paste an eBay username into Mobile Lookup — see risk summary instantly.
FAQ
Quick answers about how scoring, disputes, and fairness work.
Is this a “buyer blacklist”? ⌄
Seller Signal is a community risk signal system. Reports are weighted by reporter trust and decay over time. We also support disputes and moderation to reduce false or malicious reports.
How do you reduce spam and fake reports? ⌄
New reporters have lower impact, rate limits reduce abuse, and removed reports don’t affect scoring or trust. Admin actions are logged for accountability.
Can buyers dispute reports? ⌄
Yes. Buyers can submit a dispute with an explanation and proof links. Moderators can resolve/reject and remove or restore reports as needed.
How do I use this on mobile? ⌄
Use Mobile Lookup: copy the username from eBay and paste it into the lookup box.