Usage of Let’s Encrypt broken down by web servers

Detailed statistics in our extensive Let’s Encrypt market report.

Learn more

This diagram shows the percentages of websites using Let’s Encrypt broken down by web servers. See technologies overview for explanations on the methodologies used in the surveys.

How to read the diagram:
Let’s Encrypt is used by 63.3% of all the websites whose SSL certificate authority we know.
Let’s Encrypt is used by 83.6% of all the websites whose SSL certificate authority we know and that use Nginx as web server.

Overall

63.3%

Nginx

83.6%

Apache

73.2%

Cloudflare Server

10.5%

W3Techs.com, 18 May 2025

Percentages of websites using Let’s Encrypt broken down by web servers

More detailed statistics

You can find ranking, usage and market share data for Let’s Encrypt within all 104 web servers in our Let’s Encrypt market report and in our web servers market report.

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Technology Brief
Let’s Encrypt
Category: SSL Certificate Authorities
Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group.
Website: letsencrypt.org

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