https://maryco.github.io/gaaa/
This is a Chrome extension that gives you visibility into what is being sent to Google Analytics.
- Download archive file
- In Chrome, select "More tools" > "Extensions" to open the extension management screen
- Turn on "Developer Mode" on the top right
- Click "Load unpackaged extension" and select the downloaded and unzipped directory
- GA is roughly caught by viewing any site and enabling this extension. (Example of sites using GA: https://about.google/)