Sector
Nonprofit
26,275 domains tracked. 24.5% at DMARC enforcement (p=reject or p=quarantine), backed by 6,449 enforced domains.
Domains tracked
26K+
26,275
DMARC enforcement
24.5%
p=reject + p=quarantine
Avg posture score
37.5
of 100
A-grade domains
142
2 A+ · 140 A
Authentication posture
per protocolDMARC
policy enforcement: 24.5%reject
11.6%quarantine
12.9%none
29.1%missing
46.3%SPF
pass rate: 69.6%pass
69.6%warn
1.4%fail
27.0%not found
2.1%DKIM
pass rate: 48.1%0
pass
48.1%warn
0.0%fail
49.4%not found
2.4%MTA-STS
pass rate: 0.8%pass
0.8%warn
0.4%fail
94.9%not found
3.8%TLS-RPT
pass rate: 1.6%pass
1.6%warn
1.1%fail
93.4%not found
3.8%BIMI
pass rate: 0.5%pass
0.5%warn
0.2%fail
95.4%not found
3.8%Top performers
20 of 26,275 tracked| # | Domain | Score | Grade |
|---|---|---|---|
| 1 | teachfirst.org.uk | 95 | A+ |
| 2 | unicef.org.au | 95 | A+ |
| 3 | parkinsons.org.uk | 94 | A |
| 4 | sanfordhealth.org | 94 | A |
| 5 | votebeat.org | 94 | A |
| 6 | agc.org | 93 | A |
| 7 | mountvernon.org | 93 | A |
| 8 | nexus.org.uk | 93 | A |
| 9 | olympic.org | 93 | A |
| 10 | internetcomputer.org | 92 | A |
| 11 | mrcpuk.org | 92 | A |
| 12 | theccc.org.uk | 92 | A |
| 13 | tnlcommunityfund.org.uk | 92 | A |
| 14 | ipmsg.org | 91 | A |
| 15 | northyorkmoors.org.uk | 91 | A |
| 16 | wildlifetrusts.org | 91 | A |
| 17 | a2gov.org | 90 | A |
| 18 | afponline.org | 90 | A |
| 19 | britishcycling.org.uk | 90 | A |
| 20 | csswg.org | 90 | A |
How this is measured
Each tracked domain is scanned for SPF, DKIM, DMARC, MTA-STS, TLS-RPT, and BIMI. Result statuses (pass / fail / warn / not-found) and DMARC policy values are aggregated into this page nightly. The top performers list is capped at 20. The full corpus is much larger and is not enumerated publicly.
Data provenance
- Scanner — Authex Labs public scanner (DNS, RFC-compliant)
- Refreshed — daily at 04:05 UTC
- Last seen — 8 May 2026