NetTrack: Let’s Encrypt is the most popular SSL certificate authority
The NetTrack website published data on the popularity of SSL certificate authorities. The data showed that Let’s Encrypt is the world’s most popular SSL certificate authority, and 51.21% of websites use SSL certificates issued by Let’s Encrypt. Considering that Let’s Encrypt can provide services for issuing SSL certificates for free, it is understandable to have such a high usage rate.
SSL certificates are used to encrypt data between two points, such as your web browser and a web server. Most websites that need to handle sensitive information, such as banks, online stores, and other websites, need to use SSL encryption to protect the data that users transmit over the Internet. Typically, webmasters need to purchase SSL certificates (except for Let’s Encrypt) from an SSL certificate provider.
The NetTrack website states that to generate these statistics, they have connected to all sites in the database and extracted SSL certificate authority information from the certificate data. Sites that do not contain SSL certificates or do not enforce SSL on their sites will be excluded from this statistic.