On your child's Windows PC or Macbook, open Chrome.

Then, click the three-dot menu on the top right > Settings.

Click Privacy and Security on the left.

Click Security.

Under Advanced, find and turn off Secure DNS (or turn off "Encrypt the names of sites you want to visit").

On your child's Windows PC or Macbook, open Edge.

Then, click the three-dot menu on the top right > Settings.

In the Settings search bar, search for Secure DNS.

Find and turn off Secure DNS.

On your child's computer or laptop, open Firefox.

Click three-line menu on the top right > Settings.

Search "dns" in the Settings search bar.

Then, you'll see Network Settings as a result. Click on Settings next to Network Settings.

Scroll down and disable DNS over HTTPS. Make sure to click OK/Save. When it's turned off, it looks like this:

On your child's Windows PC or Macbook, open Brave.

Then, click the three-line menu on the top right > Settings.

On the left, click on Privacy & security.

Then, click on Security.

Under Advanced, find and turn off Secure DNS.

On your child's Windows PC or Macbook, open Opera.

Then, click the three-line menu on the top right > Go to full browser settings.

On the left, click on Privacy & security.

At the bottom, click Advanced.

Near the bottom under the System section, turn off DNS-over-HTTPS.