Frequently asked questions
Straight answers about what LotSignal does, how it sources comps, and how your dealership's data is protected.
What is LotSignal?+
A Chrome extension plus dealer portal that scores private-party vehicle listings and syncs saved vehicles to a dealership Watchlist your team can triage together.
Which marketplaces are supported?+
LotSignal currently supports major private-party marketplaces, including Facebook Marketplace, Craigslist, OfferUp, Nextdoor, and Kijiji. Manual paste is available on any page for cases that don't parse automatically.
How are comps sourced?+
LotSignal uses MarketCheck as its retail data provider. Comps are gated by duty class, drivetrain, fuel type, and mileage band.
Can I trust the verdict?+
Every verdict shows the exact comps used, the retail range, the recon cost, and the target gross. If exact-trim comps aren't available, LotSignal returns 'Insufficient Accurate Comps' — it never fabricates a score.
What's in the dealer portal?+
A dealership-scoped Watchlist your buyers push to from the extension. Managers can filter, assign, add notes, change status, and view the original appraisal snapshot for every saved listing.
Who can see my dealership's data?+
Only users you invite to your dealership. Multi-tenant isolation is enforced by database row-level policies — one dealership's data is invisible to every other dealership.
Does re-checking a listing overwrite the original appraisal?+
No. Every appraisal is stored as an immutable snapshot. Re-checks add new snapshots so the original decision context is always preserved.
What roles are available?+
Admin (dealership settings + all watchlist ops), Manager (all watchlist ops), and Buyer (add from extension, edit their own assignments).
Do you support Chrome and other browsers?+
The extension targets Chromium browsers (Chrome, Edge, Brave, Arc, Opera) via Manifest V3.