Discourseがダウンしました。証明書の問題ですか？

[agungor]

Looks like your Let’s Encrypt cert expired today. I suggest reviewing the document below—especially the Debugging section:

Set up HTTPS support with Let's Encrypt

This guide is only for existing installs where HTTPS is not enabled. Following the official setup guide automatically enables HTTPS by default. So you’d like to add https to your Discourse absolutely free, courtesy of our friends at Let’s Encrypt? Is everything else on your site ready for HTTPS? Before you start, please bear in mind that for HTTPS to work properly, every single resource on the page must be HTTPS compatible. Consider your CDN, your social logins, your…