Author

Yevheniya Nosyk

I am a Cybersecurity Researcher at KOR Labs where I analyze all the aspects of the Domain Name System. I am particularly interested in RFC compliance, large-scale Internet measurements, and network security in general. Originally from academia, I enjoy discussing my research with the broader network operators community.

A day in the life of RIPE Atlas

By Yevheniya Nosyk on 8 Apr 2026

On any given day, RIPE Atlas generates billions of measurement results, offering a comprehensive view of connectivity and reachability worldwide. Here, we focus on a single day to show how RIPE Atlas operates in practice.

Discovering the Discovery of Designated Resolvers

By Yevheniya Nosyk on 2 Sep 2025

Guest Post: Quantifying DDR adoption and configuration patterns across 1.3M open resolvers using SVCB records.

Extended DNS Errors: Unlocking the Full Potential of DNS Troubleshooting

By Yevheniya Nosyk on 28 Sep 2023

Guest Post: A study of the implementation and deployment of RFC 8914 Extended DNS Error (EDE) codes.

DNS response manipulation in the wild

By Yevheniya Nosyk on 28 Apr 2023

Guest Post: Measuring route leak propagation with RIPE Atlas.