google.it is an official domain owned by Google. Of course, they're the best out there. Safe site and trusted sources for me. Be aware of the ad results. I wish there were better ways to contact the customer support/help/feedback team.
The search engine by definition.
Too orwellian for my taste. Tracking of your navigation, and censorship based on social justice values. I would recommend something more respectful of the user privacy, and less meddling with results based on ideological bullcrap.