CAIDA DNS Lookups Dataset Request Form

CAIDA makes topology data freely available to academic researchers and US government agencies. Corporate entities (including corporate researchers) receive access through CAIDA's membership program. Information on membership levels, services, and rates is found on the CAIDA Sponsorship Information page, or can be requested by emailing

CAIDA provides an industry evaluation dataset to corporate researchers to allow them to assess the usefulness of the CAIDA topology data for their research, and justify CAIDA membership for their organization.

If you have questions or problems using this form, please send email to

If you want access to the DNS Lookup data, please complete and submit the following Data Request Form. It usually takes about two to three business days to process your request. Upon approval, you will receive an email with instructions on how to download your requested data.

Required fields are indicated by an asterisk (*).
Contact Information
Intended Data Usage
Acceptable Use Agreement

CAIDA strongly favors wide dissemination of its datasets to legitimate researchers, and CAIDA also takes seriously its obligation to responsibly disclose datasets which may present a risk if misused.

Please read the terms of the CAIDA Master Acceptable Use Agreement below:

When referencing this dataset, the use agreement requires inclusion of the following text:

The CAIDA UCSD Complete Routed-Space DNS Lookups Dataset - <dates used>,
You are required to report your publications using this dataset to CAIDA.

Related Objects

See to explore related objects to this document in the CAIDA Resource Catalog.
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