Whenever I register a domain name, the first thing I do is change the name servers to Cloudflare. Because I use Cloudflare DNS on my devices, any change I make will be immediately testable.
Some of the great features of using Cloudflare (even the free plan):
DNS management and fast/secure servers
Global Content Delivery Network (CDN) caching
IPv4 (client) -> IPv6 (server) reverse-proxying
Origin server address privacy
Netlify also provides DNS and CDN services so you can pick and choose when to use which per site.