Let’s Encrypt はフリー自動化されたオープンな認証局です。

ブログ記事より

  • 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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  • Introducing Oak, a Free and Open Certificate Transparency Log

    Today we are announcing a new Certificate Transparency log called Oak.

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  • Transitioning to ISRG's Root

    On July 8, 2020, we will change the default intermediate certificate we provide via ACME. Most subscribers don’t need to do anything. Subscribers who support very old TLS/SSL clients may want to manually configure the older intermediate to increase backwards compatibility.

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