Certificate Authority

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


We have discovered 49,172,978 live websites that use Certificate Authority.

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Certificate Authority usage statistics

Total sites that use Certificate Authority49,172,978 websites
Percentage of website that use category80.83%
Number of technologies in Certificate Authority category54
Category leader Lets Encrypt
Fastest Growing Technology Google Trust Services
Most Popular in Country United States

Subcategories


    Related Categories


      Website Distribution by Country

      Number of websites using Certificate Authority
      United States20,886,846 websites


      Germany4,900,666 websites
      France1,837,325 websites
      Israel1,596,695 websites
      GB1,563,648 websites
      Russia1,538,448 websites
      Japan1,528,497 websites
      Netherlands1,372,015 websites
      Italy1,093,080 websites
      Canada1,019,047 websites

      Website Distribution by TLD

      Number of websites using Certificate Authority
      .com22,779,910 websites
      .de3,298,884 websites
      .org2,269,058 websites
      .net1,681,233 websites
      .ru1,323,934 websites
      .nl1,228,584 websites
      .co.uk1,219,346 websites
      .it924,909 websites
      .fr827,282 websites
      .com.br638,596 websites

      Top Technologies

      Leading technologies in the Certificate Authority category (out of 54 total).
      TechnologyWebsitesMarket ShareRecent changes
      Lets Encrypt29,532,444 60.06% +274,585
      Google Trust Services6,408,317 13.03% +5,997,094
      Sectigo3,606,832 7.33% +193,287
      GoDaddy CA2,954,318 6.01% +84,565
      DigiCert2,176,365 4.43% -184,514
      AWS Certificate Manager963,658 1.96% +60,530
      GlobalSign CA916,926 1.86% -5,889
      Encryption Everywhere CA751,134 1.53% -138,537
      ZeroSSL CA703,664 1.43% -16,039
      RapidSSL CA505,527 1.03% -12,804
      AlphaSSL CA458,993 0.93% -4,043
      Actalis CA340,582 0.69% +14,764
      Starfield CA312,295 0.64% -10,946
      GeoTrust CA270,182 0.55% -19,294
      Certum CA163,418 0.33% +2,105
      See full technology list

      Top technology switches

      Number of websites that recently switched technologies within category

      FromToWebsite Count
      Lets Encrypt Google Trust Services351,435
      DigiCert Sectigo199,061
      Encryption Everywhere CA Sectigo176,435
      Lets Encrypt GoDaddy CA94,347
      ZeroSSL CA Lets Encrypt45,111
      Sectigo AWS Certificate Manager43,754

      Websites utilizing Certificate Authority

      Top websites that use Certificate Authority
      DomainCountryRankContacts
      fonts.googleapis.com United States1
      facebook.com United States2
      google.com United States3
      wordpress.org United States4
      s.w.org United States5
      twitter.com United States7
      See full domain list