a2hosting.com vs NS1

NS1 is used by more websites in our catalog: 1,610 use a2hosting.com and 12,424 use NS1.

NS1 sites have the higher median Ahrefs Domain Rating (a2hosting.com: 17, NS1: 19).

Between 2026-06 and 2026-07, a2hosting.com went from 0.20% to 0.18% 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 a2hosting.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.