
Extended DNS Errors: Unlocking the Full Potential of DNS Troubleshooting
Yevheniya Nosyk
Based in Grenoble, France
I am a cybersecurity researcher at KOR Labs, where I work at the intersection of DNS operations, large-scale Internet measurements, and network security. I divide my time between academic research and outreach to the operational community, providing analysis and data on real-world deployments. I earned a Ph.D. in Computer Science … More
• 7 min read
The Domain Name System (DNS) has traditionally relied on response codes to signal anomalies, but they are of little help to precisely identify the root causes behind failures. In this article, we examine the new Extended DNS Errors (EDE) mechanism that provides extra feedback on DNS resolutions.








