[Brajeshwar]

Wow! I'm more intrigued by the fact that you did 10M queries in 3 months. I'm going to assume you're using a single profile for everything. I have separated machines/robots (that includes the TV), kids, and other profiles for business devices.

[CharlesW]

That's a steller idea, thanks for mentioning it! I didn't realize that different profiles assign unique DNS servers, allowing me to partition off devices that don't support DNS-over-TLS/DNS-over-HTTPS/IPv6. I don't think it'd affect total queries, but tighter rules for machines/robots, etc. should increase the percentage of blocked requests.