---
title: "Reverse DNS (PTR) Lookup - Free Tool | Bit Refinery"
url: "https://bitrefinery.com/tools/reverse-dns"
description: "Resolve an IP address to its associated hostname(s) via PTR record lookup. Useful for verifying mail server setup and hosting IPs."
lastmod: "2026-08-01"
source: "auto-generated from SSG HTML"
---

# Reverse DNS (PTR) Lookup

Network & Connectivity

Resolve an IP address to its associated hostname(s) via PTR record lookup. Useful for verifying mail server setup and hosting IPs.

IP Address

Resolve an IP address to its associated hostname(s) via PTR record lookup.