Dub is link infrastructure for marketing teams: branded short links, QR codes and attribution analytics that show which channels actually convert. It is open source with a polished cloud offering, an API for programmatic link creation, and conversion tracking that ties clicks to signups and revenue.
It suits startups that have outgrown a bare URL shortener and want real attribution without a heavyweight martech suite. It is young, and the analytics go deep on links rather than full-site behavior — where Plausible or PostHog take over.