What is the problem this feature will solve?

Most Node libraries end up using dns.lookup which in turn uses blocking getaddrinfo from libc, this is discussed in detail here

This problem is particularly pronounced when making lots of outbound HTTP requests, it seems Node maxes out at around 20 requests per second being busy performing DNS lookups most of the time.

Patching applications to use asynchronous resolver requires in some cases extensive work so it would be good idea to add option to substitute dns.lookup with asynchronous one globally.

What is the feature you are proposing to solve the problem?

For example in Go this is achieved with environment variables:

export GODEBUG=netdns=go    # force pure Go resolver
export GODEBUG=netdns=cgo   # force native resolver (cgo, win32)

What alternatives have you considered?

No response