When I disable/pause the service on my domain, this call now disappears, as this tag string is not in my web code, nor do I own it.
Note I am on the Free plan. I am trying to purge all google domain calls from my site. I have come to the conclusion this tracking ID belongs to Cloudflare Inc.? and is therefore forced on my site as part of their internal metrics?
Yes, Cloudflare does not typically load any additional content, except when you configure some additional security features, but even those are loaded from your domain or Cloudflare’s.