default DNS by domain register

That way even if one of the VPS goes down, depending on the replication factor, (and if website files have dns redundancy) service will be up and complete functional.

For authoritative DNS for my domains, I use Cloudflare. I chose Cloudflare only because it is required if you want to use their "at cost" domain registration and renewal services. It

for myself, i use DoH wherever possible, or the vanilla public dns offerings from cloudflare or nextdns as mentioned by many already. at least for DoH, the mainstream services connect you to the neare

Not ideal in terms of features, but on the other hand I haven't had a DNS problem of any kind for the past 19 years.

I believe OP was asking for authoritative dns, not recursive.

Close to being my 5th year with ClouDNS.

Cloudflare for DNS, CDN and security

20i (Google DNS)

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dnsmadeeasy

The free plan supports geo DNS?

in house dns is free for public or restricted to customers?

1984, afraid.org, desec, luadns, and sometimes the DNS of a domain registry

Years ago, I used to have about 6 free secondary DNS as backups, secondary.com, UltraDNS and BuddyDNS, but they'd all fallen out of use at some point when I'd changed registrars and only listed my own

Cloudns, dns.he.net and our in house dns depending on use.

https://gcore.com/dns - I pay $0.

What DNS Provider do you use for your domains and how much do you pay if any? And do you think there is still room in the market?

when you want to access an ipv4 site only, the dns64 service takes care of address resolution. however, if you want to access an ipv4 address directly, e.g. 1.1.1.1, i cannot just add the nat64 prefix

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