GeoIP Domain Name Database

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Product Summary: Look up the second level domain names associated with IP addresses. The database would include "" or "" but not the full domain "". The database returns a sample second level domain name from the /24 netblock to which an IP address belongs. Thus it only returns the correct data if the second level domain name is the same across the entire /24 netblock. The database contains approximately 128,000 second level domain names.

The Internet Systems Consortium offers a more complete domain name database (Domain Survey Dataset) with the full domain name for every IP address.

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Purchase Site License [?]

Downloadable Database: $100 for site license, includes first month of updates. Updates are available for $24.


With Updates

Monthly billing: $100 for the first month and $24 for each month thereafter.

You may cancel your subscription at any time.


Annual billing: $364 for the first year and $288 for each year thereafter.


Product Features

Available Formats

Once your order has been processed you will be able to download the data in any one of the following formats:

  • Recommended: Use binary MMDB format with APIs, which is usually the fastest solution. - Approximately 5 MB
  • Comma-separated values (GeoIP Legacy Only) (Sample data) - Approximately 7 MB