I agree with this to the extent that it works. As a non-American the ESTA system is the main way to get phished, google it on a bad day and you get endless scams in the ad slots. “Check ESTA status” here links you to the CBP site, which is enormously better than Google.

They probably need to teach it the keyword though, I started with “ESTA” and it replied to me in Spanish telling me to ask it a question :)