Ground Signal monitors the integrity of your measurement data across every channel, every conversion, continuously. The data foundation for C3's Attribution Data Cloud — and a standalone product for brands and practitioners who need to know what they're actually measuring.
The Signal Quality Problem
Most measurement stacks report confidently on data they have never verified. Signal degradation, SDK failures, server-side gaps, and parametrization errors accumulate silently — producing attribution outputs that look precise and are structurally compromised.
iOS changes, browser restrictions, and ad blocker penetration have reduced measurable signals by 30–60% in most digital channels — but dashboards still show 100% of conversions reported by the platforms buying the media.
Server-side implementations frequently drop event data, mismap conversion types, or fail silently on specific device and browser combinations. The measurement stack appears healthy. The data is not.
When paid search, social, display, and CTV attribution models consume inconsistent source data, the outputs diverge in ways that look like channel performance differences. They are data quality differences.
Meta, Google, and TikTok report the conversions they can see within their own systems. They have no mechanism — and no commercial incentive — to tell you what they're missing.
Healthcare, financial services, and higher education operate under data handling requirements that platform-owned measurement tools cannot document or certify. The compliance gap is a legal exposure, not just a measurement inconvenience.
Every channel allocation decision made on degraded signal reinforces the wrong model. The error is not a one-time event — it compounds with every planning cycle that follows.
The independence of your measurement partner only matters if the data your measurement is built on is actually right. Ground Signal is how you know.
What Ground Signal Delivers
Ground Signal operates continuously across your full measurement stack — monitoring signal health, documenting data quality, and producing the audit trail that makes your measurement defensible.
Real-time monitoring of signal health across every channel and conversion path in your measurement stack.
A structured report documenting the actual state of your measurement data — what's complete, what's degraded, and what's missing.
A complete, traceable record of your data chain — built for procurement review, regulatory compliance, and internal accountability.
The Quality Manifest
The Quality Manifest is Ground Signal's primary deliverable — a structured, repeatable report that documents signal quality across your full measurement stack. It is the proof layer that makes "our data is better" a defensible claim, not a marketing statement.
For brands, it is the foundation of measurement accountability. For procurement and compliance teams, it is the documentation that platforms cannot produce. For professional services practitioners, it is the deliverable their clients need.
Every channel in your stack rated on completeness, consistency, and attribution readiness.
Full traceability from source event to attribution input, documented and timestamped.
Signal quality over time — so you can see whether data integrity is improving, degrading, or holding stable.
Signal Integrity by Channel
Data Chain Status
Engagement Options
Ground Signal is designed to work either way — as a standalone data integrity subscription for brands and practitioners, or as the data foundation layer underneath C3's full Attribution Data Cloud.
Subscribe to Ground Signal directly — signal monitoring, Quality Manifest delivery, and compliance documentation — without committing to full MTA. Ideal for brands assessing their measurement readiness, agencies building data quality practices, or professional services firms delivering measurement audits.
When Ground Signal powers C3's full platform, every attribution output — MTA, MMM, incrementality — is built on data that has been monitored, verified, and documented. The Quality Manifest becomes the proof layer for every analytical conclusion you deliver to stakeholders.
Who Ground Signal Is For
Ground Signal serves brand-side measurement leaders directly — and enables professional services practitioners to build data integrity offerings their clients can't get from platform tools.
You're responsible for the measurement your organization makes budget decisions on. Ground Signal gives you documented proof that your data is what your models say it is — and flags the gaps before they compound into wrong budget allocations.
Your clients' data quality directly affects the credibility of your reporting. Ground Signal gives your team the monitoring infrastructure to catch signal degradation before it affects campaign recommendations — and a Quality Manifest to share with clients when it matters.
Build your marketing measurement audit practice on a data foundation your clients can trust. Ground Signal's Quality Manifest and compliance documentation give independent practitioners a structured, repeatable deliverable — backed by C3's infrastructure — without building the data layer yourself.
Pricing
Ground Signal pricing scales with your measured digital media spend. SDK and third-party data charges are additional and vary by channel configuration.
SDK data charges and third-party source fees are additional. Implementation complexity and channel scope affect pricing. All programs include a scoping discussion before commitment.
Start with a conversation. We'll walk through your current measurement stack, identify where signal quality is a risk, and show you what a Quality Manifest for your program would contain.