IP to Hostname — Reverse DNS Lookup, Find Domain from IP
Free online reverse DNS lookup tool. Enter any IPv4 or IPv6 address to find all hostnames associated with it via PTR record queries. Useful for server identification, email server verification, network troubleshooting, and cybersecurity investigations. Returns the primary hostname and all associated PTR records, query time, and full timestamp. Powered by server-side DNS resolution — no data is stored or logged.
JavaScript is required to use this interactive tool. Please enable JavaScript in your browser, or use our IP to Hostname API for programmatic access.
