Plumbline Labs
Plumbline measures advertising performance across Google, Meta, and TikTok against a single source of truth — so budget moves toward what is actually working, not toward whichever platform claims the most credit.
Every ad platform optimizes inside its own walls and grades its own homework. Plumbline sits across all of them and measures performance the same way, every time, against outcomes you own.
Spend and outcomes from every platform, normalized to one honest metric instead of three conflicting dashboards.
Platforms over-claim the conversions they merely influenced. Plumbline measures incremental lift against your own ground truth.
Allocation follows real cross-platform performance, on a cadence no weekly manual review can match.
The ad platforms each optimize within their own walls and report their own numbers. None of them is neutral, and none will tell you when a competitor's platform is delivering cheaper results.
Plumbline is the layer they structurally can't be: it sits across Google, Meta, and TikTok, measurement-first, owned by no one's auction. The discipline underneath it is honest cross-platform measurement — the part the walled gardens have no incentive to build for you.