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CRM glossary

Server-side tagging

Also called: server-side GTM, server container

Server-side tagging moves tag execution out of the browser: the page sends one request to a container you run, and that container forwards data to analytics and advertising platforms. It limits what third-party scripts can see, reduces the weight of the page, and gives one place to enforce consent and strip fields you should not be sending. The costs are real, since you operate and pay for the container, and debugging moves out of the browser console.