Certificate Authority

Certificate authority (CA) is an entity that issues digital certificates.



We have discovered 64,114,907 live websites that use Certificate Authority.

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Certificate Authority usage statistics

Total sites that use Certificate Authority64,114,907 websites
Percentage of website that use category76.84%
Number of technologies in Certificate Authority category54

Category leader Lets Encrypt
Fastest Growing Technology Lets Encrypt
Most Popular in Country United States

Top Technologies

Top 6 technologies in Certificate Authority category (out of 54 total).
See full technology list

Top technology switches

Number of websites that switched technologies within category in the past 3 months

FromToWebsite Count
Sectigo Lets Encrypt579,071
Lets Encrypt Sectigo444,360
cPanel CA Lets Encrypt122,572
Lets Encrypt Google Trust Services70,189
Cloudflare Certificate Google Trust Services55,601
DigiCert Lets Encrypt55,300

Certificate Authority usage distribution by website popularity



Geographical Distribution

Category usage distribution by websites across the globe.



Websites utilizing Certificate Authority

Top websites that use Certificate Authority
DomainCountryRankContacts
fonts.googleapis.com United States1
facebook.com United States2
www.facebook.com United States2
google.com United States3
www.google.com United States3
wordpress.org United States4
See full domain list