Let's Encrypt Project

What is Let's Encrypt Project ?

The Let's Encrypt project is a free, automated, and open-source certificate authority (CA) that provides SSL/TLS certificates for websites. The project was launched in 2015 by the Internet Security Research Group (ISRG) to address the issue of widespread HTTPS adoption. HTTPS is the secure version of HTTP, and it is used to encrypt the data transmitted between a website and a user's web browser. SSL/TLS certificates are required to enable HTTPS on a website.


The Let's Encrypt project provides SSL/TLS certificates to website owners for free, making it easy for them to secure their websites and protect their users' sensitive data. The project is supported by a number of organizations, including the Electronic Frontier Foundation (EFF), Mozilla, and the University of Michigan.


The certificates provided by Let's Encrypt are domain-validated SSL/TLS certificates, which means that they only validate that the website domain belongs to the person requesting the certificate. Let's Encrypt uses the ACME protocol to automate the process of obtaining and renewing SSL/TLS certificates. This makes it easy for website owners to obtain and manage SSL/TLS certificates, even if they have little technical expertise.


Let's Encrypt certificates are trusted by all major web browsers, including Chrome, Firefox, and Safari. This means that websites using Let's Encrypt certificates will display the green padlock icon in the browser address bar, indicating that the website is secure.


In summary, the Let's Encrypt project is a free and open certificate authority that makes it easy for website owners to obtain and manage SSL/TLS certificates. Its mission is to promote widespread adoption of HTTPS and improve internet security for everyone.