Marketing attribution: know which channel sent the customer.

How do you know where a lead came from?

Most attribution rests on a cookie. An analytics or ad platform's script sets it when the visitor lands, and a second script fires when the form is sent. Block the cookie, let it expire, switch devices, or lose the second script, and the credit is lost or misfiled. The platform still reports a number as if nothing went wrong.

A site we build with three-bucket capture records the source at the moment the form is submitted. The site's own script notes the page that sent the visitor and any click ids or campaign tags on the link they clicked, and keeps them for the whole visit. When the form goes in, the form handler reads those signals, names the channel and writes it to the lead row in the same server-side append as the name, phone and message. The credit sits on the record your own site writes before any tag has a chance to fail.

Three labels cover every visit. A click carrying a Google, Meta or Bing click id, or a paid medium tag, is named Paid, with the network and the campaign or creative that earned it. A visit referred by an answer engine is named AI Search, with the engine. Everything else is Organic. Ordinary referrals and direct visits fold in there on purpose: they are earned rather than bought, and a visit whose referrer the browser stripped arrives as direct even when it began on a search page. The raw click ids, campaign tags and referrer are written in the next column, so you audit a label that looks wrong back to what the browser sent. The Leads view reads that sheet newest first, and each row carries its named channel.

Why do GA4, Google Ads and your lead count disagree?

Each one records a different event. Google Analytics 4 counts sessions by source and the key events its tag saw, hours behind. Google Ads counts the conversions its own tag reported, also hours behind. The lead ledger counts forms actually submitted, live. What GA4 counts and what Ads counts has a page of its own. On the instance whose forms feed the sheet today, a lead watch runs daily at 7:20am ET and compares the three. It raises five conditions: the tag no longer loads, leads landing with zero GA4 form events, paid leads landing with zero Ads conversions, a campaign that reliably spent going to zero, and traffic continuing with no leads at all.

The watch exists so the three counts are reconciled every day rather than at the end of the quarter. It reads your own record of what came in, then the conversions Google counted for the same period. A dead tag, a blind ad account or a stalled form is flagged the next morning, while the budget is still yours to move. Attribution built on tags alone can say the opposite of the truth for a whole quarter before anyone looks.

What does a wrong number cost you?

One customer. Where the owner carries marketing on the side, nobody else stands between a bad number and a bad decision. Cut a channel because a report said it produced nothing, and the phone simply rings less. Start from your own forms and your own CRM, know where the record stops, and you stop reading a report and start knowing what happened. Prove which dollar made the phone ring is the owner's version of this page.