Open Internet Evolution Data

Sweet! The folks of OpenINTEL at the University of Twente opened up two of their datasets last week. If you’re a researcher in the field of network analytics, then I highly recommend you check out their site Data Access tab.


OpenINTEL is a system that collects large amounts of data on the evolution of the internet by continuously taking snapshots of the DNS of several top-level domains (TLDs). The monitored TLDs include large gTLDs such as .com and .net as well the bigger ccTLDs such as .se (Sweden) and .nl (of course :-)).

What they have made available is the set of DNS responses that they obtained by sending a fixed set of DNS queries every 24 hours for every second-level domain name in the Alexa Top 1 Million and in the zone files of ccTLDs that publish their zones (currently .se and .nu).

SIDN Labs and OpenINTEL

SIDN Labs and SURFnet co-funded the hardware of the OpenINTEL system, which is operated by Roland, Mattijs, and Anna of the DACS group at the University of Twente.


Happy data analysis!



Cristian Hesselman

Director SIDN Labs

+31 6 25 07 87 33

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