27 May 2026

Measurement

Cross-domain tracking: why your paid traffic shows as direct

If your checkout lives on a subdomain or second domain, attribution can quietly break. How to spot it and fix it in GA4 and GTM.

Daniel Whitehouse

Daniel Whitehouse, performance marketing consultant

The symptom: direct grows, paid shrinks

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How the linker works

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Diagnosing with real traffic

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If this sounds like your account, the audit is the fastest way to know for sure.

The fix

Full copy for this section is being written. In the meantime, ask me about it directly and I will talk you through what I look for.

Proving recovery

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