https://gettrack.link/research/utm-tagging-benchmarks
UTM Tagging Benchmarks: 81% of Links Have No UTMs (2026 Data)
Jun 28, 2026 - Only 18.5% of tracked link clicks carry UTM parameters. Our 2026 study of over 420,000 clicks shows 4 in 5 marketers can't see their true traffic source — plus...
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