PTR Record Lookup
Lookup the Pointer records for an IP address.
How to Use PTR Record Lookup
1
Enter an IPv4 address (e.g., 8.8.8.8) or a .arpa domain string.
2
Click the 'Lookup PTR Record' button.
3
View the hostnames associated with that IP address.
Why Use This Tool?
Verify Mail Servers
Many email providers will reject emails from IP addresses that do not have a valid PTR record (Reverse DNS).
Network Diagnostics
Identify the hostname of devices connecting to your network or appearing in your server logs.
Understanding Your Results
PTR Record
Stands for 'Pointer Record'. It resolves an IP address to a domain or hostname, the exact opposite of an A record.
in-addr.arpa
The special domain name space used for reverse DNS lookups in IPv4. Our tool automatically formats your IP address into this structure.
Important Notes
- Results are provided for informational purposes only.
- This tool runs entirely in your browser.
- Do not use this tool for malicious scanning or targeting.
Privacy & Security
- No data is sent to our servers. Everything is processed locally.
- We do not collect personal information from tool inputs.
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