What are the primary differences in performance between Quad9 and Cloudflare DNS?

Quad9 primarily focuses on blocking malicious domains using its own threat intelligence, resulting in generally fast and reliable performance, especially for users in North America and Europe. Cloudflare DNS, on the other hand, leverages a massive, globally distributed network and offers features like DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) for enhanced security and privacy. While Cloudflare can be very fast, performance can sometimes vary slightly depending on the user's location and network congestion.