TLD

.app

2,274 domains tracked. 20.4% at DMARC enforcement (p=reject or p=quarantine), backed by 464 enforced domains.

Domains tracked
2K+
2,274
DMARC enforcement
20.4%
p=reject + p=quarantine
Avg posture score
27.5
of 100
A-grade domains
4
0 A+ · 4 A

Authentication posture

per protocol

DMARC

policy enforcement: 20.4%
reject
11.5%
quarantine
8.9%
none
19.5%
missing
60.1%

SPF

pass rate: 52.2%
0
pass
52.2%
warn
1.1%
fail
46.6%
not found
0.0%

DKIM

pass rate: 31.6%
00
pass
31.6%
warn
0.0%
fail
68.4%
not found
0.0%

MTA-STS

pass rate: 0.3%
0
pass
0.3%
warn
0.4%
fail
99.4%
not found
0.0%

TLS-RPT

pass rate: 0.6%
00
pass
0.6%
warn
0.0%
fail
99.4%
not found
0.0%

BIMI

pass rate: 0.6%
0
pass
0.6%
warn
0.4%
fail
99.0%
not found
0.0%

No top performers available yet. The leaderboard refreshes nightly.

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