Reading Authoritative Nameservers from RDAP

nameservers objects, glue records, and DNS ops use cases.

Overview

nameservers objects, glue records, and DNS ops use cases.

Key points

  • Combine IANA bootstrap with local indexes for better coverage.
  • Keep WHOIS port 43 fallback for RDAP-less TLDs.
  • Respect registry rate limits; cache aggressively.
  • Expose data source and partial flags in API output.

WHO.GA in practice

WHO.GA (Whoga) provides unified web and JSON API lookup for scenarios like "Reading Authoritative Nameservers from RDAP", handling bootstrap routing, registrar referrals, and WHOIS fallback. Try who.ga or api.who.ga/<query>.