During the summer of 2019, Haoyu Jiang and Wes Hardaker studied the effects of DNS traffic sent to the root serevr system by chromium-based web browsers. The results of this short research effort were posted to the APNIC blog.
B-Root, one of the 13 root DNS servers, deployed three new sites in January 2020, doubling its footprint and adding its first sites in Asia and Europe. How did this growth lower latency to users? We looked at B-Root deployment with Verfploter to answer this question. The end result was that new sites in Asia and Europe allowed users there to resolve DNS names with B-Root with lower latency (see the catchment map below). For more details please review our anycast catchment page.
B-root added 3 new sites in Singapore, Washington, DC, and Amsterdam to their three existing 3 sites in Los Angeles, Chile, and Miami. The graph below shows anycast catchments after these sites were deployed (each color in the pie charts shows traffic to a different site).
Wes Hardaker gave two presentations at DNS-OARC on November 1st, 2019. The first was a presentation about the previously announced “Cache me if you can” paper, which is on youtube, and the slides are available as well. The second talk presented Haoyu Jiang’s work during the summer of 2018 on analyzing DNS B-Root traffic during the 2018 DITL data for levels of traffic sent by the Chrome web browser, levels of traffic associated with different languages, and levels of traffic sent by different label lengths. It is available on youtube with the slides here.