portsdns.net vs UltraDNS

UltraDNS is used by more websites in our catalog: 130 use portsdns.net and 2,243 use UltraDNS.

portsdns.net and UltraDNS sites have a similar median Ahrefs Domain Rating.

Between 2026-06 and 2026-07, portsdns.net went from 0.02% to 0.01% of all tracked sites, while UltraDNS went from 0.32% to 0.25%. portsdns.net is gaining ground faster in our index.

No. A site runs a single DNS provider, so portsdns.net and UltraDNS 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.