Monthly Observatory Brief - October 2026

What stood out this month

1. Nameserver changes were concentrated in a small part of the observation panel during October. The observatory recorded 58 nameserver-change observations across seven domains. In two of those domains, DNS-provider and hosting-related signals also appeared alongside nameserver changes on nine observation dates. These overlapping observations show repeated visible infrastructure movement, but do not establish completed or permanent migrations.
2. October's month-end observations illustrate the difference between visible records and their recorded posture. DMARC records were observed for 97 of the 98 domains with determinate DMARC evidence. Of those, 96 were classified as valid, while one had multiple records. DNSSEC evidence was visible for 15 panel domains. These are dated observations of public signals, not conclusions about the effectiveness of internal controls.

October 2026 · calendar-month evidence.