Fortune 500 Infrastructure Trust Report
How do the world's largest companies score on email security and domain trust? We scanned 50 Fortune 500 and major tech domains across DMARC, SPF, DKIM, SSL, DNSSEC, and more.
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Methodology
Domains are scanned using Vysiro's 28-category TrustScore engine (0-1000), checking DMARC, SPF, DKIM, SSL/TLS certificate validity, DNSSEC, MTA-STS, BIMI, CAA, DANE, TLS-RPT, and more. DNS queries use a 5-resolver DoH cascade (Cloudflare, Google, Quad9, NextDNS, Mullvad) for maximum reliability. Scans are refreshed daily. Scores reflect publicly available DNS and SSL data only.
This report is for informational purposes. Companies may have additional security measures not reflected in public DNS/SSL records.