How to resolve a hostname to its IPv4 and IPv6 addresses

1. Enter the hostname

   Type a domain or hostname (e.g. example.com) into the "Hostname" field. Up to 253 characters. Empty whitespace is trimmed.

2. Both record types in one call

   The tool asks the public DNS resolver for both A (IPv4) and AAAA (IPv6) records and returns each as its own array. Hosts with only A or only AAAA give one populated array and one empty one.

3. Press Run

   Result returns `ipv4` and `ipv6` arrays. Multi-homed services (most CDNs) typically return several addresses per family — pick any one to connect; load balancing happens at DNS or at the closest hop.

4. Cache surprises

   DNS results are cached per resolver. If your operations team just updated DNS, our resolver may still see the old answer for a few minutes (until TTL expires). Re-run later to confirm rollout.