Notably, the Safe Browsing Update API never sends the URL itself to the server: it does a local lookup with hash prefixes of the URL, and only if that finds som

Notably, the Safe Browsing Update API never sends the URL itself to the server: it does a local lookup with hash prefixes of the URL, and only if that finds some threat does it then send the hash prefix to Google (which gives some degree of deniability, given they never know what actual URL you've visited, and only rarely get anything).