DigiCert vs Let's Encrypt

Let's Encrypt is used by more websites in our catalog: 35,062 use DigiCert and 466,882 use Let's Encrypt.

DigiCert sites have the higher median Ahrefs Domain Rating (DigiCert: 53, Let's Encrypt: 23).

Between 2026-06 and 2026-07, DigiCert went from 5.3% to 4.0% of all tracked sites, while Let's Encrypt went from 59% to 53%. DigiCert is gaining ground faster in our index.

No. A site runs a single SSL certificate authority, so DigiCert and Let's Encrypt 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.