co.uk vs dyn.com

co.uk is used by more websites in our catalog: 2,705 use co.uk and 192 use dyn.com.

dyn.com sites have the higher median Ahrefs Domain Rating (co.uk: 31, dyn.com: 37).

Between 2026-06 and 2026-07, co.uk went from 0.38% to 0.31% of all tracked sites, while dyn.com went from 0.03% to 0.02%. dyn.com is gaining ground faster in our index.

No. A site runs a single DNS provider, so co.uk and dyn.com 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.