Browser tracking is losing signal. Safari caps cookies at 7 days, ad blockers strip requests to googletagmanager.com, and Firefox blocks third-party resources by default. Google Tag Gateway and server-side GTM both solve this, but they take fundamentally different approaches. This guide compares them head-to-head with …
Implementing GTM Server-Side on self-hosted infrastructure reduces costs from €50-150/month (Google Cloud) to €5-20/month while ensuring on-premise compliance essential for regulated industries. This technical guide covers complete Docker implementation: container setup, DNS configuration, Caddy reverse proxy with …