Google Tag Manager Detection
Problem: Google Analytics was once easy enough to detect on a page. You would search the page contents for ga.js
or analytics.js
(depending on the version) and go from there. Now that Google Tag Managerhttps://www.google.com/analytics/tag-manager/ is gaining traction, we need a new approach to determining if pages have Google Analytics properly installed.
Solution: This package does a few things:
- Asserts whether a URL has an instance of Google Tag Manager (GTM) on the page
- Returns the GTM ID for a page (makes the assumption of one per page)
- Given a GTM ID, assert whether the tag has Google Analytics loaded within it
- Returns the property ID associated with the GTM instance
Installation
The following will add it to your project's package.json
file.
npm install google-tag-manager-detection --save
Demo
$ git clone https://github.com/raventools/google-tag-manager-detection.git$ cd google-tag-manager-detection$ npm install$ npm run-script demo https://raventools.com
Methods
var gtmd = // Detect Google Analytics for a given page with GTM (does everything)gtmd; // Get the Google Tag Manager ID for a given pagegtmd; // Inspect the GTM instance for GA codegtmd;