September 2026 .auDO monthly observatory brief: 949 recorded event rows across 35 panel domains, with 67 evidence-qualified supported-movement rows across 22 domains, linked mail-routing evidence and dated month-end Mail trust posture.
30- and 90-day windows report observed event activity where interpretation is available. Dates describe loaded source evidence, not guaranteed per-signal completeness or comparability. A missing day is never treated as zero activity.
Dated rolling summaries produced before Public Methodology v1.2 may not represent consecutive calendar dates. Older source-date coverage cannot always be independently reconstructed. Read the historical method limitation.
30 days requested
30 of 30 requested calendar dates have loaded sources (2026-09-28 to 2026-10-27). Complete source-date coverage; individual signals may still have gaps.
Current population: 100 domains. Longitudinal-eligible: 100. Common observed population: 100. No population boundary is present in this requested window.
High-signal trust posture change
94Tier 1
Meaningful infrastructure movement
12Tier 2
Routine or low-confidence churn
805Tier 3
Unclassified
0Unclassified
Domains with repeated Tier 1 observations14
Domains with repeated Tier 2 observations2
Domains with repeated mail-posture observations0
Domains with repeated nameserver or infrastructure observations7
Domains with repeated DNSSEC mismatch observations0
Domains with repeated routine A/AAAA observations27
90 days requested
90 of 90 requested calendar dates have loaded sources (2026-07-30 to 2026-10-27). Complete source-date coverage; individual signals may still have gaps.
Current population: 100 domains. Longitudinal-eligible: 100. Common observed population: 100. No population boundary is present in this requested window.
High-signal trust posture change
244Tier 1
Meaningful infrastructure movement
25Tier 2
Routine or low-confidence churn
2439Tier 3
Unclassified
0Unclassified
Domains with repeated Tier 1 observations40
Domains with repeated Tier 2 observations5
Domains with repeated mail-posture observations11
Domains with repeated nameserver or infrastructure observations9
Domains with repeated DNSSEC mismatch observations0
Domains with repeated routine A/AAAA observations29
Derived from observed events only; raw evidence and ingestion are unchanged.
Counts and repeated observations are candidate patterns, not incident assertions.
Across 25 consecutive Mail Posture observations, broad SPF and DMARC publication persisted while the more useful distinctions sat inside derived posture and evidence quality.
Recurring briefs and reviews synthesise completed reporting periods. Longitudinal windows show rolling whole-panel evidence. Daily reports preserve dated records. Featured analysis examines selected themes.
The fixed Observation Panel defines what is repeatedly observed. State describes current aggregate posture; Signals and Methodology explain evidence meaning and limits.
The Research Agenda defines the standing questions against which evidence accumulates. Periodic and featured analysis may address one or more of those questions when the evidence is mature enough.