Bulk Reverse DNS / PTR Lookup

Bulk reverse DNS lookup (PTR records) for a list of IP addresses.

Single Bulk

The batch runs in the background. You can close this tab and return to the results later.

One IP address per line (IPv4 or IPv6). Up to 200 items per batch.

Bulk processing FAQ

What does bulk processing do?

Bulk reverse DNS lookup (PTR records) for a list of IP addresses.

How do I prepare input?

One IP address per line (IPv4 or IPv6). Up to 200 items and 0.25 MiB per batch. Items keep their original order and duplicates.

Does processing use API credits and where are results stored?

No API credits are charged. Category access and workload limits still apply. Inputs and results are encrypted and available only to their owner for 30 days for accounts or 7 days for guests. Pending items can be cancelled.

How do export and retry work?

Download CSV, JSON. Each item has its own result. Retry technical failures; correct invalid input in a new batch. Successful items remain unchanged.