nhs.uk vs ui-dns.biz

ui-dns.biz is used by more websites in our catalog: 117 use nhs.uk and 1,827 use ui-dns.biz.

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

Between 2026-06 and 2026-07, nhs.uk went from 0.02% to 0.01% of all tracked sites, while ui-dns.biz went from 0.23% to 0.21%. nhs.uk is gaining ground faster in our index.

No. A site runs a single DNS provider, so nhs.uk 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.