为1.8亿个网站提供TLS证书的非盈利性证书颁发机构。

阅读我们的2019年度报告 (电脑版, 手机版)

博客文章

  • Multi-Perspective Validation Improves Domain Validation Security

    At Let’s Encrypt we’re always looking for ways to improve the security and integrity of the Web PKI. We’re proud to launch multi-perspective domain validation today because we believe it’s an important step forward for the domain validation process.

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  • How Let's Encrypt Runs CT Logs

    Let’s Encrypt launched a Certificate Transparency (CT) log this past spring. We’re excited to share how we built it in hopes that others can learn from what we did.

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  • Onboarding Your Customers with Let's Encrypt and ACME

    If you work at a hosting provider or CDN, ACME’s DNS-01 validation method can make it a lot easier to onboard new customers who have an existing HTTPS website at another provider. Before your new customer points their domain name at your servers, you need to have a certificate already installed for them. Otherwise visitors to the customer’s site will see an outage for a few minutes while you issue and install a certificate.

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