Lead tracking, marketing attribution, and building Trackfully in the open.
You can track which marketing produces your leads without breaking UK law, but most setups get the two-law split wrong. PECR governs the cookie, UK GDPR governs the lead record, and this guide walks through both with a checklist you can actually follow.
Leads arrive, money goes out, and most businesses can't connect the two. This guide covers the full lead source tracking chain: capturing UTMs, click IDs and referrers, persisting them through the visit, and attaching them to every lead.
Since 5 February 2026, UK sites can run first-party analytics cookies without a consent banner. Attribution and advertising tracking still need opt-in, and PECR fines now reach £17.5m. The plain-English version for marketers.
Traffic went up. Rankings improved. But which campaign actually made the phone ring? Here's why that question is so hard to answer — and how attribution fixes it.
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