Changelog
What changed on CurlShip, newest first.
Tracking params on outbound links
Every link out to a listed site now carries tracking params. Free listings link out with ?ref=curlship, so a product sees CurlShip in its analytics instead of 'direct' traffic.
Bronze and up can set their own utm_*/ref params on that link — POST /api/edit-request with {"listing_id": N, "tracking": {...}, "proof": "email"}. Stored params survive a lapse back to free and return on re-upgrade; send {} to clear them.