Attribution
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The Which Ads Convert blog

Marketing attribution, explained without the jargon.

Practical guides on attribution, customer journey analytics, and conversion tracking — for marketers and founders who already know what converted and want to know why.

Tracking 7 min read
Why Your Analytics Shows So Much "(direct) / (none)" Traffic

A third of your traffic showing as "direct" isn't a compliment — it's usually a tagging problem wearing a disguise. Here's what's actually causing it.

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Tracking 6 min read
GCLID and FBCLID Explained: What Click IDs Actually Do

A gclid or fbclid in your URL bar looks like junk. It's actually the one piece of data that lets a platform match a click to a conversion that happens minutes, or months, later.

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Tracking 8 min read
Meta Ads Attribution: Why Facebook's Numbers Don't Match Your Revenue

Meta says it drove 40 purchases. Shopify says 25. Neither is lying — they're measuring different things, on different windows, from different data.

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Tracking 8 min read
Meta Conversions API vs. Pixel: What Actually Changes for Attribution

Ad blockers, Safari's ITP, and iOS privacy settings all quietly eat Pixel data. The Conversions API is Meta's answer — here's what it fixes and what it doesn't.

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Tracking 8 min read
Server-Side Tracking and Why It Changes Attribution Accuracy

Every browser-side tag is one ad blocker away from never firing. Server-side tracking doesn't fix your attribution model — it fixes the data the model is built on.

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Tracking 6 min read
UTM Naming Conventions: A Template Your Whole Team Will Actually Follow

A UTM naming convention that only works if everyone remembers it perfectly, forever, doesn't work. Here's a simpler structure built around what people actually forget.

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Tracking 8 min read
UTM Tracking 101: How to Set Up UTM Parameters That Don't Break Your Reports

UTMs are the plumbing under every attribution report you'll ever look at. Get them wrong and everything downstream — funnels, journeys, revenue by channel — breaks quietly.

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