DNS Integration Datasets

This web page documents our datasets about DNS Integrations–use of Domain Name System names to link to some other naming system.

Our datasets are available upon request.

Relevant Publications

These datasets have been used in the following publications:

  • Sulyab Thottungal Valapu, John Heidemann, Mattijs Jonker and Raffaele Sommese 2026. Zombies in Alternate Realities: The Afterlife of Domain Names in DNS Integrations. Technical Report arxiv:2605.06880 [cs.CR]. USC/Information Sciences Institute. [PDF] Details

Linkage Datasets

Each file contains inferred linkage lifetimes and zombie classifications for one ecosystem. All analyses in the paper are derived from these datasets.

  • Web PKI: webpki_linkages.parquet
  • ENS (On-chain): ens_onchain_linkages.parquet
  • Maven Central: maven_linkages.parquet

These datasets are in parquet format.

Please request these datasets directly from the authors.

Third-Party Data

The following third-party datasets were used to produce the linkage datasets above. Please contact the providers directly for access.

Getting this data

Third-party datasets must be obtained directly from their owners.

For the detailed formats of each dataset, and to request datsets, please refer to the corresponding README file at our dataset list page.

We are still packaging some datasets. If you need datasets not listed on that page, please contact Sulyab Thottungal Valapu or John Heidemann.

Getting Collection Software

We plan to make the software we use to collect this data available at no cost. Please contact Sulyab Thottungal Valapu or John Heidemann for information.