Lists and compares the Google tag settings of one or more tag IDs (G-…, AW-…, GT-…, DC-…) side by side. Made for migrating Google Tag Manager containers from Google tags to destinations: there, the settings of only one Google tag become the container default, everything else has to be added by hand.
The script reads the public gtag.js of each ID. No API access, no login, no dependencies.
Background and migration walkthrough (German): Google Tag Manager mit Zielen statt Google-Tags: Umstellung, Vorteile, Stolpersteine
Requires Node.js 18 or newer.
