B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
30.4%
30.4% -- dmarc adoption rate for Global domains (Tranco Top Sites) (Q1 2026)
30.4% of the 5.5 million scanned domains from the Tranco Top Sites List have adopted DMARC as of Q1 2026.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
30.4%
Unit
Percentage
Data Vintage
Q1 2026
Entity
Sample Size
5,500,000
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Sources (5)
DMARCguard
Primary
Tier A
https://dmarcguard.io/research/ ↗
Source Article
DMARC, SPF & DKIM Adoption Research: 5.5M Domains | DMARCguard
Research
Original data on email authentication adoption. Our flagship study scans 5.5 million domains from the complete Tranco Top Sites List, covering DMARC, SPF, DKIM, MTA-STS, BIMI, and DANE.
2 Studies
5.5M Domains Scanned
6 Protocols
Q1 2026 Latest Data
Flagship Study
7 in 10 domains have no DMA…
Also cited by
2026-09-18
2026-09-19
2026-09-21
2026-09-27
Original Research
DMARCguard
· Original study ↗
Methodology
Original automated scan of 5.5 million domains from the complete Tranco Top Sites List, checking DNS records for DMARC, SPF, DKIM, MTA-STS, BIMI, and DANE. Key email deliverability benchmark for bulk senders.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Global domains (Tranco Top Sites): 30.4% dmarc adoption rate. Source: DMARCguard (Q1 2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/dmarc-adoption-rate-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/dmarc-adoption-rate-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>30.4%</strong> -- dmarc adoption rate for Global domains (Tranco Top Sites)<br><small>Source: DMARCguard (Q1 2026) · <a href="https://lighthousedata.io/data/dmarc-adoption-rate-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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