Websites using Let's Encrypt
Let's Encrypt is a free, automated, and open certificate authority. Category: SSL/TLS certificate authorities. https://letsencrypt.org/
17,796 sites in our index use Let's Encrypt.
The most visited of them
| Site | Version | First seen |
|---|---|---|
| wikipedia.org | 2026-10-28 12:21 | |
| wordpress.org | 2026-10-28 12:21 | |
| ntp.org | 2026-10-28 12:21 | |
| nginx.org | 2026-10-28 12:21 | |
| b-cdn.net | 2026-10-28 12:21 | |
| mozilla.org | 2026-10-28 12:21 | |
| wordpress.com | 2026-10-28 12:21 | |
| lencr.org | 2026-10-28 12:21 | |
| github.io | 2026-10-28 12:21 | |
| apache.org | 2026-10-28 12:21 |
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