Outages

Let's Encrypt production ACME API still running with reduced redundancy

2026-06-21 digest developing

  • Category: Outage
  • Status: developing
  • Sources: Let's Encrypt status
  • 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) still reports the API operating normally but with reduced redundancy while Let's Encrypt works with its upstream ISP on root cause. No newer update had been posted as of the 2026-06-21 check, and the incident is not marked 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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