Sealmetrics works in four separable stages, each with a defined input, a visible output and a boundary your technical team can inspect. Collection is first-party and server-side: a script under 5 KB gzipped records the event, and no cookie, identifier or IP is stored on the way. Processing filters bot traffic and derives channel context from the URL and referrer alone. Attribution assigns revenue on last click across data without consent gaps, under one declared model rather than a blend nobody can reproduce. Activation moves that same evidence out through the REST API, the MCP server and BigQuery export. Keeping collection separate from interpretation is what makes a disagreement diagnosable — you can tell whether a number is wrong because events are missing, because a commercial definition changed, or because of the attribution model. Installation takes 5 to 30 minutes depending on the platform, and the previous day is complete before 6 AM.