Looks like an affiliate link but this has nothing to do with Cloudflare.
Change back to 8.8.8.8 and try again and Don’t forget to clear the browser cache before.
Check your PC for any adware, malware, or what ever if it persists after you changed the DNS.
This domain is regisered with Namecheap and the root is redirecting too google which
strengthens my feeling that this is something local.
Adding r.eaburl.com to my hosts as localhost/127.0.0.1 did not “stop” this from happening, scanned computer, changed dns, ran ccleaner… safe mode… nothing stops it?
Well, it isnt / wasnt. Particularly because 1.1.1.1 cannot be responsible for the issue you described.
As @MarkMeyer already explained your computer most likely got some malware in some form installed (could be also an extension, as @sdayman mentioned) and you need to clean that up.