When you set your DNS to 3.3.3.3 , you are telling your computer to ask Quad9’s global network where to find a website (e.g., converting google.com into an IP address). However, before Quad9 returns the answer, it checks that domain against real-time threat intelligence feeds.
Q: Can I use 3.3.3.3 with my existing internet plan? A: Yes, you can use 3.3.3.3 with your existing internet plan by configuring your device's DNS settings.