Perform bulk reverse DNS (PTR) lookups for multiple IP addresses.
IP Input
0 IPs
One IP per line · IPv4 & IPv6 · max 500Ctrl+Enter to run
💡 What is PTR record?
PTR (Pointer) records implement reverse DNS — mapping an IP address back to a hostname. Stored under .in-addr.arpa (IPv4) or .ip6.arpa (IPv6), they're used for email spam checks, logging, and network diagnostics.
Results
Enter domains and click Run
Domains: —·Found: —·Missing: —·Errors: —
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Ready to check PTR records
Enter IP addresses on the left → click Run PTR Lookup