Certainly vs Starfield Technologies, Inc.

Starfield Technologies, Inc. is used by more websites in our catalog: 776 use Certainly and 4,290 use Starfield Technologies, Inc..

Certainly sites have the higher median Ahrefs Domain Rating (Certainly: 63, Starfield Technologies, Inc.: 34).

Between 2026-06 and 2026-07, Certainly went from 0.12% to 0.09% of all tracked sites, while Starfield Technologies, Inc. went from 0.55% to 0.49%. Certainly is gaining ground faster in our index.

No. A site runs a single SSL certificate authority, so Certainly and Starfield Technologies, Inc. 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.