Tracker registry
Google Tag Manager is a tracker owned by Google. When a website embeds it, it collects loads other trackers a site has configured.
Loads other trackers a site has configured. Because the same tracker appears across many sites, Google can stitch those signals into a profile tied to you — often without you ever visiting their app directly.
Google Tag Manager loads from these domains:
googletagmanager.com
Our free scanner checks any site for these in seconds.
Scan any website for trackers, or see who's watching your family's devices.
Scan a websiteFamily protection