February 17, 2022
Marriott Austin Downtown
UTC timezone

Updating Requirements for Caching DNS Resolution Failures

Feb 17, 2022, 8:00 PM
Marriott Austin Downtown

Marriott Austin Downtown

304 East Cesar Chavez Street, Austin, Texas 78701 USA
Standard Presentation Main Session OARC 37 Day 1


Duane Wessels (Verisign)


In October 2021, a large social media platform experienced a widespread outage of its network. In this presentation, we will show how the outage led to a significant traffic increase on Verisign's authoritative name servers. Furthermore, we will show how this incident is similar to other events and conditions, and discuss our proposal for stricter protocol requirements on negative caching of DNS resolution failures.

Presentation delivery Remotely (online)

Primary author

Duane Wessels (Verisign)


Matthew Thomas (Verisign)

Presentation materials