Deno - Notice history

All systems operational

Notice history

Jul 2026

Deno Deploy Chicago cluster outage
  • Resolved
    Resolved
    The incident has been resolved. deno.com, deno.land, and Deno Deploy managed network traffic have recovered and we are no longer seeing impact.
  • Monitoring
    Monitoring
    The infrastructure problem at one of our cloud providers has been mitigated, and affected services are recovering. We are monitoring for any remaining issues.
  • Identified
    Identified
    We have identified the cause as an infrastructure problem at one of our cloud providers. deno.com, deno.land, and Deno Deploy managed network traffic remain impacted while recovery work continues.
  • Update
    Update
    We are continuing to investigate a major outage affecting deno.com, deno.land, and Deno Deploy managed network traffic. Builds triggered via GitHub integration, CLI, or API may also fail because builds run in Chicago. Sandbox creation in Chicago may also fail.
  • Investigating
    Investigating
    Starting around 00:07 UTC, the Deno Deploy Chicago cluster is unreachable. This affects the Deno Deploy managed edge network for visitors routed through that region, impacting a significant portion of global traffic. Because deno.land and deno.com are hosted on Deno Deploy, they may be affected as well. The Deno Deploy console remains available, but builds triggered via GitHub integration, CLI, or API may fail because builds run in Chicago. Sandbox creation in Chicago may also fail. We are investigating.
Deno Deploy Chicago cluster outage
  • Monitoring
    Monitoring
    The Chicago cluster outage was resolved around 10:15 PDT and affected services have recovered. We are continuing to monitor.
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    Starting around 09:25 PDT, the Deno Deploy Chicago cluster experienced an outage. This affected the Deno Deploy managed edge network for visitors routed through that region, impacting a significant portion of global traffic. Because deno.land and deno.com are hosted on Deno Deploy, they were affected as well. The Deno Deploy console remained available, but builds triggered via GitHub integration, CLI, or API were failing because builds run in Chicago. Sandbox creation in Chicago was also failing.

Jun 2026

Deno Deploy Outage
  • Resolved
    Resolved
    This incident has been resolved.
  • Monitoring
    Monitoring
    We implemented a fix and are currently monitoring the result.
  • Investigating
    Investigating
    We are currently investigating this incident.
Deno Deploy Console - Slow to respond
  • Resolved
    Resolved
    This incident has been resolved.
  • Investigating
    Investigating
    We are currently investigating this incident.
Registering new and renew existing custom domains
  • Resolved
    Resolved

    This incident has been resolved.

  • Identified
    Identified

    Register new domains and renewing existing ones is failing on certificate validation.

    We are currently investigating this incident.

    It looks like other people using the same certificate provider are also having issues the same issues.

May 2026

Intermittent Request Failures
  • Resolved
    Resolved

    This incident has been resolved.

    The internal service mesh has seen handshake failures between some nodes and we have implemented mitigation measures. We're investigating the root cause for a final fix.

  • Investigating
    Investigating

    We are currently investigating this incident.

    We're seeing again some requests failing with 503 errors with the message `NO_VALID_CLUSTER`

Intermittent Request Failures
  • Resolved
    Resolved

    This incident has been resolved.

    It was caused by some networking changes being rolled out that caused peering instability.

  • Investigating
    Investigating

    Some requests failed to be served with 500 errors and a NO_VALID_CLUSTER error message.

May 2026 to Jul 2026

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