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DEVELOPER UTILITY

Reverse DNS (PTR) Lookup

Map IPs back to hostnames when PTR records exist and are maintained.

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What is reverse DNS?

Forward DNS maps names to IPs; reverse DNS uses PTR records in special zones. Many providers set generic PTRs; absence does not prove malice, but mismatches can affect mail reputation.

How to use this tool

Paste the IP. Run reverse lookup. Compare PTR with expected HELO/EHLO names for mail debugging.

Use cases

SMTP reputation triage, correlating CDN nodes, incident response breadcrumbs, learning DNS symmetry.

Privacy and security

Lookups and probes may be sent through WebStatus.in infrastructure to reach public DNS, HTTP, or reputation systems. Only query targets you are authorized to test, and avoid pasting secrets into any network tool.

Frequently asked questions

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Reverse DNS Lookup