Every DTC brand hits the same wall: your Amazon and TikTok Shop revenue moves the day the platform changes its rules. Fees drift up, algorithm windows shrink, and the audience you thought was yours turns out to be the platform's — rented back to you one impression at a time.
Signal builds the layer they can't take away: a converting site, an organic footprint the AI search engines cite, and paid channels tuned for owned first-party audiences. The compounding math flips — every dollar spent adds to an asset you keep, not a placement you rent.
For Lighthouse clients already running Velocity on Amazon or Amplification off-Amazon, Signal closes the loop: the traffic that hits your site becomes the audience you retarget forever — outside the marketplace's cost curve.