a2dns.com vs NS1

NS1 is used by more websites in our catalog: 330 use a2dns.com and 12,424 use NS1.

a2dns.com sites have the higher median Ahrefs Domain Rating (a2dns.com: 26, NS1: 19).

Between 2026-06 and 2026-07, a2dns.com went from 0.04% to 0.04% of all tracked sites, while NS1 went from 1.4% to 1.4%. NS1 is gaining ground faster in our index.

No. A site runs a single DNS provider, so a2dns.com and NS1 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.