Foundation DNS vs ui-dns.biz

ui-dns.biz is used by more websites in our catalog: 568 use Foundation DNS and 1,827 use ui-dns.biz.

Foundation DNS sites have the higher median Ahrefs Domain Rating (Foundation DNS: 64, ui-dns.biz: 22).

Between 2026-06 and 2026-07, Foundation DNS went from 0.09% to 0.06% of all tracked sites, while ui-dns.biz went from 0.23% to 0.21%. ui-dns.biz is gaining ground faster in our index.

No. A site runs a single DNS provider, so Foundation DNS 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.