Is Let's Encrypt down?
Last checked 1m agoNo incidents right now.
Let's Encrypt is operational right now. Last checked 1m ago; the most recent incident resolved 6d ago.
Real-time Let's Encrypt status, recent outages, and incident history — pulled directly from Let's Encrypt's official status page at https://letsencrypt.status.io every 5 minutes. Pingoru tracks 22 Let's Encrypt services and has captured 4 incidents in the last 90 days (99.19% uptime). Get email, Slack, Discord, or webhook alerts the moment Let's Encrypt reports a new incident — free for 5 monitors, no credit card.
Recent outages & incidents
Past 90 days- acme-v02.api.letsencrypt.org (Production)acme-staging-v02.api.letsencrypt.org (Staging)High Assurance Datacenter 2High Assurance Datacenter 1
Timeline · 5 updates
- investigating · Sep 11, 2026, 01:40 AM UTC
Let's Encrypt is investigating elevated failure rates for Domain Control Validation over the last hour, which may prevent subscribers from obtaining certificates. Back to current status Status History Powered by Status.io Subscribe to receive status updates by email Close Subscribe Manage Subscription Manage Existing Subscription Create New Subscription Subscribe to receive status updates in Microsoft Teams Enter your Microsoft Teams webhook. View Instructions Email address for managing subscription Close Subscribe Manage Subscription Manage Existing Subscription Create New Subscription Subscribe to receive status updates via RSS RSS Feed Close Subscribe to receive status updates in Slack Slack channel ID Find the channel ID: Select the channel in your Slack workspace. The channel ID is displayed in the browser URL. Example: https://app.slack.com/client/T04SJBK1C/ C03SKGJ1P Email address Close Manage Subscription Manage Existing Subscription Create New Subscription Subscribe to receive status updates via iCalendar iCalendar Feed Close
- investigating · Sep 11, 2026, 01:40 AM UTC
Let's Encrypt is investigating elevated failure rates for Domain Control Validation over the last hour, which may prevent subscribers from obtaining certificates.
- identified · Sep 11, 2026, 02:11 AM UTC
We have identified an issue with our DNS resolver in our secondary validation. The change is being reverted, and we expect to be operational within 15 minutes.
- identified · Sep 11, 2026, 02:11 AM UTC
We have identified an issue with our DNS resolver in our secondary validation. The change is being reverted, and we expect to be operational within 15 minutes.
- resolved · Sep 11, 2026, 02:39 AM UTC
The incident has been resolved. Validations are succeeding.
Latest: The incident has been resolved. Validations are succeeding.
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- Started Sep 11, 2026, 01:40 AM UTC · Resolved Sep 11, 2026, 02:39 AM UTC · 58m