DNS provider and delegation signals

Visible authoritative DNS-provider distribution and delegation movement across the fixed .auDO panel.

Fixed observation panelLatest run 27 Oct 202630/90-day windows

Latest available data: 27 Oct 2026

Latest observations

What is visible now

Latest DNS-provider and nameserver observations across the fixed panel.

Current observation

DNS providers were identified for 100 of 100 panel domains, across 13 visible provider groupings.

Observed 27 Oct 2026. 87 distinct nameserver sets were visible.

100DNS provider visible
0Provider unavailable or unclassified
13Distinct providers
87Distinct nameserver sets
100Active Domains

DNS Providers

  • [unclassified]2929%
  • Amazon Web Services2222%
  • Akamai1818%
  • Cloudflare1111%
  • Microsoft1010%
  • UltraDNS22%
  • VentraIP22%
  • DNS Made Easy11%
  • Discount Domain Name Services11%
  • Gandi11%
  • GoDaddy11%
  • ZoneEdit11%

Nameserver Set Summary

  • Distinct nameserver sets870%
  • Domains with nameserver-set evidence100100%

Recent activity

When delegation activity was retained

A compact dated view of eligible DNS-provider and nameserver activity across the fixed panel.

Retained activity

Delegation and DNS-provider activity

28 Sep–27 Oct

62 eligible observations across 7 panel domains; 6 domains recorded eligible activity on more than one date.

26 retained activity datesDaily breadth 1–4 domains6 DNS-provider movement56 Nameserver movement

Bar height shows affected domains on retained eligible activity dates. Unmarked dates are not treated as proved zero activity.

Inspect all 26 retained activity dates
  1. 28 Sep: 3 eligible observations affecting 3 domains — 3 Nameserver movement
  2. 29 Sep: 3 eligible observations affecting 3 domains — 3 Nameserver movement
  3. 30 Sep: 2 eligible observations affecting 2 domains — 2 Nameserver movement
  4. 2 Oct: 1 eligible observation affecting 1 domain — 1 Nameserver movement
  5. 3 Oct: 3 eligible observations affecting 3 domains — 3 Nameserver movement
  6. 4 Oct: 3 eligible observations affecting 3 domains — 3 Nameserver movement
  7. 5 Oct: 1 eligible observation affecting 1 domain — 1 Nameserver movement
  8. 6 Oct: 2 eligible observations affecting 2 domains — 2 Nameserver movement
  9. 7 Oct: 1 eligible observation affecting 1 domain — 1 Nameserver movement
  10. 8 Oct: 3 eligible observations affecting 3 domains — 3 Nameserver movement
  11. 9 Oct: 5 eligible observations affecting 4 domains — 1 DNS-provider movement; 4 Nameserver movement
  12. 10 Oct: 2 eligible observations affecting 2 domains — 2 Nameserver movement
  13. 12 Oct: 3 eligible observations affecting 2 domains — 1 DNS-provider movement; 2 Nameserver movement
  14. 13 Oct: 4 eligible observations affecting 3 domains — 1 DNS-provider movement; 3 Nameserver movement
  15. 14 Oct: 2 eligible observations affecting 2 domains — 2 Nameserver movement
  16. 16 Oct: 1 eligible observation affecting 1 domain — 1 Nameserver movement
  17. 17 Oct: 1 eligible observation affecting 1 domain — 1 Nameserver movement
  18. 18 Oct: 2 eligible observations affecting 2 domains — 2 Nameserver movement
  19. 19 Oct: 1 eligible observation affecting 1 domain — 1 Nameserver movement
  20. 20 Oct: 3 eligible observations affecting 3 domains — 3 Nameserver movement
  21. 21 Oct: 3 eligible observations affecting 3 domains — 3 Nameserver movement
  22. 22 Oct: 2 eligible observations affecting 2 domains — 2 Nameserver movement
  23. 24 Oct: 4 eligible observations affecting 3 domains — 1 DNS-provider movement; 3 Nameserver movement
  24. 25 Oct: 1 eligible observation affecting 1 domain — 1 Nameserver movement
  25. 26 Oct: 3 eligible observations affecting 2 domains — 1 DNS-provider movement; 2 Nameserver movement
  26. 27 Oct: 3 eligible observations affecting 2 domains — 1 DNS-provider movement; 2 Nameserver movement

Recent movement

30-day window

28 Sep 2026 to 27 Oct 2026

56 material trust-posture observations and 6 supporting infrastructure observations were visible across the fixed panel during the selected 30-day window.

56Material
6Supporting
0Routine churn
7Affected domains
6Repeated domains

Movement counts use members eligible for the complete requested population window; source-date coverage and signal determinacy remain separately governed.

Retained event types

  • Nameservers Changed56nameservers_changed
  • DNS Provider Changed6dns_provider_changed

Correlation-only observations

  • Hosting Move Signal6hosting_move_signal

90-day window

30 Jul 2026 to 27 Oct 2026

126 material trust-posture observations and 7 supporting infrastructure observations were visible across the fixed panel during the selected 90-day window.

126Material
7Supporting
0Routine churn
9Affected domains
7Repeated domains

Movement counts use members eligible for the complete requested population window; source-date coverage and signal determinacy remain separately governed.

Retained event types

  • Nameservers Changed126nameservers_changed
  • DNS Provider Changed7dns_provider_changed

Correlation-only observations

  • Hosting Move Signal7hosting_move_signal

What this means

DNS-provider inference is derived from visible nameserver and DNS patterns. Provider concentration does not establish service quality, resilience, organisational dependency or endorsement. Nameserver and provider movement may reflect planned migration, supplier change, portfolio consolidation or routine administration.

Evidence

30-day evidence

Material observations — 9 Oct 2026

Observation date: 9 Oct 2026

Material
4
Supporting
1
View evidenceRaw JSON

Material observations — 24 Oct 2026

Observation date: 24 Oct 2026

Material
3
Supporting
1
View evidenceRaw JSON

Material observations — 21 Oct 2026

Observation date: 21 Oct 2026

Material
3
Supporting
0
View evidenceRaw JSON

Material observations — 20 Oct 2026

Observation date: 20 Oct 2026

Material
3
Supporting
0
View evidenceRaw JSON

Material observations — 13 Oct 2026

Observation date: 13 Oct 2026

Material
3
Supporting
1
View evidenceRaw JSON

Material observations — 8 Oct 2026

Observation date: 8 Oct 2026

Material
3
Supporting
0
View evidenceRaw JSON

90-day evidence

Material observations — 9 Oct 2026

Observation date: 9 Oct 2026

Material
4
Supporting
1
View evidenceRaw JSON

Material observations — 24 Oct 2026

Observation date: 24 Oct 2026

Material
3
Supporting
1
View evidenceRaw JSON

Material observations — 21 Oct 2026

Observation date: 21 Oct 2026

Material
3
Supporting
0
View evidenceRaw JSON

Material observations — 20 Oct 2026

Observation date: 20 Oct 2026

Material
3
Supporting
0
View evidenceRaw JSON

Material observations — 13 Oct 2026

Observation date: 13 Oct 2026

Material
3
Supporting
1
View evidenceRaw JSON

Material observations — 8 Oct 2026

Observation date: 8 Oct 2026

Material
3
Supporting
0
View evidenceRaw JSON

Cohort lenses

Cohort lenses preserve the published cohort order and are descriptive comparisons, not rankings.

Australian government domains

14 domains observed

DNS provider visible
14
Provider unavailable or unclassified
0
Distinct providers
5
30d events
2
30d affected
1
30d repeated
0
90d events
2
90d affected
1
90d repeated
0
View cohort

Australian not-for-profit domains

16 domains observed

DNS provider visible
16
Provider unavailable or unclassified
0
Distinct providers
7
30d events
2
30d affected
1
30d repeated
1
90d events
4
90d affected
2
90d repeated
1
View cohort

Australian higher education domains

10 domains observed

DNS provider visible
10
Provider unavailable or unclassified
0
Distinct providers
4
30d events
40
30d affected
3
30d repeated
3
90d events
88
90d affected
3
90d repeated
3
View cohort

Australian media domains

8 domains observed

DNS provider visible
8
Provider unavailable or unclassified
0
Distinct providers
3
30d events
18
30d affected
2
30d repeated
2
90d events
37
90d affected
2
90d repeated
2
View cohort

Retail and marketplace domains

14 domains observed

DNS provider visible
14
Provider unavailable or unclassified
0
Distinct providers
5
30d events
0
30d affected
0
30d repeated
0
90d events
0
90d affected
0
90d repeated
0
View cohort

Financial services domains

8 domains observed

DNS provider visible
8
Provider unavailable or unclassified
0
Distinct providers
4
30d events
0
30d affected
0
30d repeated
0
90d events
0
90d affected
0
90d repeated
0
View cohort

Public-interest domains

21 domains observed

DNS provider visible
21
Provider unavailable or unclassified
0
Distinct providers
6
30d events
2
30d affected
1
30d repeated
0
90d events
4
90d affected
2
90d repeated
0
View cohort

Australian software platforms

5 domains observed

DNS provider visible
5
Provider unavailable or unclassified
0
Distinct providers
3
30d events
0
30d affected
0
30d repeated
0
90d events
0
90d affected
0
90d repeated
0
View cohort

About this view

Where is authoritative DNS visibly concentrated, how diverse are the nameserver arrangements, and where has delegation or inferred DNS-provider responsibility moved?

Show the visible distribution of authoritative DNS providers and nameserver arrangements, together with observed delegation and DNS-provider movement during defined observation windows.

Published limitations

  • Derived from public .auDO observations generated from the canonical observatory dataset.
  • Counts describe the observed .auDO panel, not the whole .au namespace.
  • Missing optional fields are counted as missing rather than inferred.
  • DNS provider inference is based on visible public DNS patterns.
  • Provider concentration does not imply endorsement, service quality, dependency risk or organisational fault.
  • Nameserver or provider movement may reflect normal operational change.

Data quality and availability

  • Required public event scope: observatory.
DNS ProviderNameserversWhy Nameserver Changes MatterState of .auReportsMethodologyObservation Guide