Internet Measurement Data Catalog (IMDC)

Internet data remains one of the basic components of computer science network research. Despite its necessity, available data is limited by legal, social, and technical constraints on its collection and distribution. Thus, optimal distribution of knowledge about available data is a valuable service to the research community. To this end, CAIDA developed the Internet Measurement Data Catalog to:

  • facilitate searching for and sharing of data among researchers
  • enhance documentation of datasets via a public annotation system
  • advance network science by promoting reproducible research

Internet Measurement Data Catalog (DatCat) service has ended

From 2006 to 2018, the Internet Measurement Data Catalog was hosted at for use by the general networking community.

Funding for the project has ended, and as of June 2018, the DatCat service is no longer available. Please see a catalog of cybersecurity-relevant data at IMPACT Cyber Trust.

To learn more about IMDC, see our ACM CCR paper from October 2005.

Funding support

National Science Foundation (NSF)

Support for the Internet Measurement Data Catalog project is provided by the National Science Foundation (NSF) grant OAC-0137121 Correlating Heterogeneous Measurement Data to Achieve System-Level Analysis of Internet Traffic Trends. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of NSF.

Additional Content

Internet Measurement Data Catalog (IMDC) Specification

We are prototyping and testing the Internet Measurement Data Catalog (IMDC) that will systematize distributed repositories and archives of Internet data and tools.

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