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My IP & Reverse DNS Lookup

Network & Web ToolsGo Backend

Find your public IP address, detect IPv4/IPv6, and perform forward and reverse DNS lookups.

SponsorNon-intrusive

What is My IP & Reverse DNS Lookup?

Instantly view your current public IP address and perform forward or reverse DNS resolution on any IPv4/IPv6 address or hostname.

How to Use Online

  1. 1
    View Current Public IPThe tool automatically detects and displays your current public IP address.
  2. 2
    Lookup Custom IP AddressOr enter any external IPv4 or IPv6 address to run network diagnostics.
  3. 3
    Click Lookup IPFetch geolocation coordinates, country, region, city, and timezone.
  4. 4
    Inspect Network RoutingReview ISP name, Autonomous System Number (ASN), and reverse DNS hostname.

Key Features

  • Auto-detects your client public IP address
  • Supports querying custom IP addresses and hostnames
  • Performs Reverse DNS (PTR) lookups to discover associated hostnames
  • Detects IPv4 vs IPv6 protocol

Common Use Cases

  • Checking your outgoing IP when configuring firewall allowlists
  • Verifying reverse DNS PTR records for mail servers
  • Investigating suspicious server access log IP addresses

Frequently Asked Questions

Reverse DNS resolves an IP address back to its associated domain name (hostname), utilizing PTR DNS records.