[ripdog]

Thank you for the correction, I did get that wrong. To be clear, there was no easy solution to get reliable, low latency DNS responses from my own resolver without breaking keepalive by forcibly caching entries longer?

[bauruine]

Not that I know of except from having a big cache and many users that keeps it warm. As I said you could run a local root zone but that only saves you the one time lookup every week+ of the tld name servers and the root servers are generally very close to you. There is a map of all root servers. There are 12 in .nz alone. A few cc tlds are providing their zone via axfr [1] so you could add that to your resolver to save some roundtrips but I don't think having .ch or .se locally will make a big difference and they are 1.2GB each and you would need to download them daily.

[0]: https://root-servers.org/ [1]: https://github.com/jschauma/tld-zoneinfo