🔁 rDNS / PTR Lookup
Enter an IP address to find its associated domain name using PTR records. Fast, private, and registration-free.
What is rDNS (Reverse DNS)?
Reverse DNS (rDNS) allows you to resolve a domain name associated with a specific IP address. It is essential for email server verification, anti-spam protection, and network diagnostics.
A PTR record maps an IP address to a domain. Without it, the IP remains "anonymous" in DNS queries.
- 🔁 Instantly convert IP to domain name
- 📦 Used in SMTP, DNS, and server configurations
- 🛠 Powered by Google DNS API
- 📱 Fully responsive for mobile, tablet, and desktop
The Bit.Hosting rDNS tool lets you check PTR records for any IPv4 address instantly in your browser. No data is stored — everything runs locally and securely.