Data Layers platforms Event Watcher detects

Data layers are the structured JavaScript objects (window.dataLayer and its equivalents) where a site publishes events for tag managers and analytics tools to consume. Event Watcher intercepts every push in real time, shows the full payload, and identifies which script wrote it: the site itself, a tag manager, or a third-party script.

8 of the 590+ platforms Event Watcher recognizes are data layers tools.