We're seeing a lot of downstream effects of this at StatusGator. Of course any provider that relies on LetsEncrypt to issue certs (such as Heroku) is affected.

We're seeing a lot of downstream effects of this at StatusGator. Of course any provider that relies on LetsEncrypt to issue certs (such as Heroku) is affected. One notable exception is Cloudflare: They famously no longer rely solely on LetsEncrypt.