Glossary · Letter G
GTM (Google Tag Manager)
A tag management system that loads analytics and marketing tags (GA4, Meta Pixel, LinkedIn Insight Tag, Clarity) without code changes. GTM is the standard in 2026 for keeping marketing tags maintainable. Single GTM container ID powers all tracking sitewide. Misconfigured GTM is one of the most common causes of "we cannot measure conversions" complaints.
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