HTTPS Tracking Certificate Creation / Renewal blocked by Let's Encrypt Outage

Final update

This incident has been resolved.

1. Resolved · Jul 22, 11:33 UTC
   This incident has been resolved.
2. Monitoring · Jul 22, 05:22 UTC
   The current status of Let's Encrypt infrastucture is "[Identified] We have deployed mitigations for the failure of our internal DNS servers. Issuance of certificates is now succeeding, though we are still recovering from the resulting high traffic volumes." We are monitoring the situation and will update our status page accordingly.
3. Identified · Jul 21, 23:56 UTC
   Let's Encrypt, the certificate issuer used for creating certificates on customer tracking domains is experiencing an outage (https://letsencrypt.status.io/). Attempting to generate or regenerate a tracking certificate will not succeed until service is restored.