In this work we measure what percentage of DNS recursive
resolvers perform negative caching in the wild. We deploy
our own authoritative name server and harness thousands
of RIPE Atlas [3] sites spread over the globe to perform
repeated DNS queries for non-existing sub-domains of our
authoritative domain.
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@inproceedings{shafir2019dns, title={Dns negative caching in the wild}, author={Shafir, Lior and Afek, Yehuda and Bremler-Barr, Anat and Peleg, Neta and Sabag, Matan}, booktitle={Proceedings of the ACM SIGCOMM 2019 Conference Posters and Demos}, pages={143--145}, year={2019} }