NS1 vs UltraDNS

NS1 is used by more websites in our catalog: 12,424 use NS1 and 2,243 use UltraDNS.

UltraDNS sites have the higher median Ahrefs Domain Rating (NS1: 19, UltraDNS: 55).

Between 2026-06 and 2026-07, NS1 went from 1.4% to 1.4% of all tracked sites, while UltraDNS went from 0.32% to 0.25%. NS1 is gaining ground faster in our index.

No. A site runs a single DNS provider, so NS1 and UltraDNS are mutually exclusive.

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.