Data Access

The data collected by the OpenINTEL platform has many applications in network and network security research. For this reason, we make our data available to academic researchers upon request. As using the data requires specific knowledge and may require specific analysis infrastructure, we invite fellow researchers to contact us about this, so we can discuss your research needs.

We note that there are restrictions on the use of the data collected by the OpenINTEL platform, which are partly a result of the contractual obligations we have with the gTLD and ccTLD operators who have provided access to the zone files for the top-level domains for which they are responsible. One key restrictions is that we cannot provide data for commercial purposes, so please do not contact us if you want to make commercial use of the data we collect. We may also have to impose restrictions about third party release of research data derived from data collected by the OpenINTEL platform. This will be discussed on a per request basis.

Open data

We release five of our datasets as open data:

  • Alexa top 1M (deprecated) - This dataset contains DNS records collected on a daily basis for all domains listed in the Alexa top 1 million list. The dataset contains daily measurement data starting on January 22, 2016 till May 16, 2023.
  • Cloudflare Radar - This dataset contains DNS records collected on a daily basis for all domains listed in the Cloudflare Radar top 1 million list. The dataset starts on October 4, 2022 and is updated once per 24 hours with new data.
  • Tranco - This dataset contains DNS records collected on a daily basis for all domains listed in the Tranco top 1 million list. The dataset starts on August 11, 2022 and is updated once per 24 hours with new data.
  • Cisco Umbrella - This dataset contains DNS records collected on a daily basis for all domains listed in the Cisco Umbrella top 1 million list. The dataset starts on January 14, 2019 and is updated once per 24 hours with new data.
  • Open ccTLDs - This dataset contains DNS records collected on a daily basis for all country-code domain names under the .se, .nu, .ee, .sk and .fr zones, and all US Federal domain names from the .gov and .fed.us generic TLDs.
  • Amassed ccTLDs (unlisted) - This dataset contains DNS records collected on a daily basis for country-code domain names learned from TLS certificates which we continually collect from certificate transparency (CT) logs. This source extends coverage into many otherwise closed ccTLDs but does not necessarily cover all names in said ccTLDs.

By downloading this data, you agree to keep to our terms of use. For viewing our open access data in a separate tab click here.