Research
Original findings from the dns.pizza dataset — the DNS, email-authentication and security checks we run continuously across the world's most-visited domains. A new report every two weeks, each with its methodology and downloadable data, free to cite (CC BY 4.0).
July 17, 2026
Top-1k median: 2005The Oldest Domains on the Internet: a census of 85,887 analyzed domains
85,887 domains dated: the median top-1,000 domain was registered in 2005 — 7 years older than the mid-tail — 17.7% of the 1985–1995 cohort still sits in today's top 10,000, and 36.4% of the pre-2000 web lives at just three registrars.
Read the report →July 12, 2026
Only 25% enforceThe State of DMARC 2026: adoption across the top 100,000 domains
78,743 domains measured: 39.7% publish a DMARC record, only 25.1% enforce one — and the biggest sites publish less but enforce far harder than the mid-tail.
Read the report →