Lead source diagnostic
If you cannot defend where a lead came from, the tracking is broken.
GA4 says one thing. HubSpot says another. Half the pipeline is Direct or Unknown. MarStack finds the broken tags, forms, and CRM handoffs — then tells you what to fix before you spend another month guessing which ads work.
This is the problem we actually solve
- GA4 does not match HubSpot or your CRM. You cannot tell if the ads, the site, or the form is lying.
- Too many leads land in Direct / Unknown. UTMs drop, thank-you pages do not fire, or the CRM overwrites the source.
- Forms submit and nothing shows up. GTM is published, but the conversion event never reaches GA4 or Google Ads.
- You are scaling spend on numbers nobody trusts. Leadership asks “what’s working?” and the honest answer is “we’re not sure.”
Tags & GTM
Container health, duplicate pixels, missing conversion events, and tags firing on the wrong pages.
Forms & leads
Whether the form, thank-you page, and hidden fields actually pass campaign data into HubSpot or your CRM.
GA4 vs CRM
Why the two systems disagree, and which report you can use to decide budget.
How this engagement starts
- Optional: run the free Site Audit on your URL. It flags tags, forms, and tracking gaps before the call.
- 20-minute diagnostic: we look at ad → site → form → CRM. You get a written list of what is broken and what a fix includes.
- Then you decide. If you want us to implement, that is a separate scoped project — not a surprise retainer.
FAQ
What happens on the diagnostic call?
We look at how leads move from ad click to form to HubSpot or your CRM. You leave with a plain-language list of what is broken, why reports disagree, and what a fix would include.
Do I need to run the free Site Audit first?
No. The audit is optional. Bring the results to the call, or skip it and we start from your GA4 and CRM screenshots.
Who is this for?
Business owners and in-house marketers who already spend on ads, use GA4 (and often HubSpot), and cannot defend which campaigns create leads. We are not a general creative or media agency.
Do you only work in Northern Virginia?
MarStack is based in Reston, VA. Tracking and attribution work is remote-friendly across the United States.
Stop funding channels you cannot measure
Book the diagnostic, or scan the site first. Either way, the next step is a list of what is actually broken.