Who Moves the World's DNS: 15 Months of Delegation Flux, a One-Month Million-Domain Migration, and the Nameservers That Outlive Their Owners
We followed the NS delegation of every apex domain across nine full crawls, April 2025 - July 2026 (404 million apexes). 61% of the web kept the exact same nameservers for fifteen months; operator switching runs at 2.3% a month; and the biggest moves were corporate re-plumbs - GoDaddy consolidating 2.1 million NameFind domains onto Afternic, Namecheap shifting 1.1 million parked names to an undocumented platform in one month. Meanwhile 339,000 domains still delegate to the retired Dan.com. For DNS operators, security teams, and Internet measurement researchers.