NS1 vs ui-dns.biz

NS1 is used by more websites in our catalog: 12,424 use NS1 and 1,827 use ui-dns.biz.

ui-dns.biz sites have the higher median Ahrefs Domain Rating (NS1: 19, ui-dns.biz: 22).

Between 2026-06 and 2026-07, NS1 went from 1.4% to 1.4% of all tracked sites, while ui-dns.biz went from 0.23% to 0.21%. NS1 is gaining ground faster in our index.

No. A site runs a single DNS provider, so NS1 and ui-dns.biz 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.