DNS over HTTPS (DoH) - or "Secure DNS" as it is called in Chrome - is a way to encrypt DNS queries and responses between a user's device and the resolving DNS server. For more on this see New in Simple DNS Plus v. 9.0.
To enable this in Chrome, do the following:
- Click the "more" button (3 vertical dots) in the top right corner of Chrome.
- Select "Settings...".
- Click "Privacy and Security" in the right side panel.
- Click on "Security"
- Scroll down to the "Advanced" section.
- Click "Use secure DNS" switch to enable.
- Here you can specify your DNS provider / enter a DoH query URL: