What are the implications for advanced DNS configurations, such as geo-DNS or weighted routing, between Namecheap PremiumDNS and Cloudflare?

Cloudflare, even on its free tier, offers more advanced DNS features like CNAME flattening, wildcard records, and certain level of routing capabilities. While Namecheap PremiumDNS is a solid DNS service, it typically focuses on core DNS resolution and security, and may not offer the same depth of advanced traffic management features as Cloudflare.