Outages

Let's Encrypt production ACME API operating with reduced redundancy

2026-06-20 digest developing

  • Category: Outage
  • Status: developing
  • Sources: Let's Encrypt status, discussion
  • Summary: Following the 2026-06-18 upstream network event on acme-v02.api.letsencrypt.org, the most recent status update (2026-06-19 04:45 UTC) reports the API operating normally but with reduced redundancy while Let's Encrypt works with its upstream ISP on root cause. The incident is not fully resolved.
  • Why it matters: ACME issuance and renewal underpin TLS for a large share of the web, so reduced redundancy raises the risk if a second fault occurs before full restoration.
  • Follow-up: Watch for redundancy fully restored and any Let's Encrypt post-incident note.

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