Data studies
Research
Original data studies on DNS, email authentication, SSL and web security, measured across popular domains using our own tools.
August 2026
Email Authentication Across the Top 10,000 Domains
SPF, DMARC, MTA-STS, BIMI and DNSSEC measured across 10,000 of the web's most-linked domains. 86.4% of mail domains publish DMARC — but 29.4% of those records never block anything.
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August 2026
HTTP Security Headers Across the Top 10,000 Domains
HSTS, CSP, X-Frame-Options, nosniff, Referrer-Policy and Permissions-Policy read from 10,000 homepages. Only 6.8% set all six, and 32.8% of the CSPs that exist still allow unsafe-inline.
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August 2026
Who Runs DNS for the Top 10,000 Domains
Nameserver operators, redundancy and TTL practice across 10,000 of the web's most-linked domains. The top five serve 55.6% of them, and only 1.5% delegate to more than one provider.
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