https://transparencyreport.google.com/safe-browsing/search

Makes you type-in a single URL. There is no way to use a keyword to get a list of items back. My point is that it should be trivial for google to do this, since this is their core competency.

I fail to understand whats so special about maintaining a tiny list of website URLs that anybody can access at any time? I'd wager you can fit 10+ million URLs per GB. The wayback machine has 300 billion+ pages of full page historical content and you can access all of it. This is entirely within Google's wheelhouse. Certainly, there could be other factors to not handout the list, but I'm merely speaking about the engineering aspect here.