Downrightnow
// Incident Post-MortemDRN-F36BCF73

Fly.io outage on May 21, 2026

Major severityResolved18 minCloud
Started · UTC
May 21, 12:03 PM
2d ago
Resolved · UTC
May 21, 12:21 PM
2d ago
Duration
18 min
End-to-end
Peak confidence
80.00
7 snapshots
// User impact

Fly.io users likely saw failed connections, degraded availability, or session instability for this Cloud service. The incident reached Major severity and lasted 18 min. The stored report window does not show a preserved user-report spike.

// What happened

Fly.io is investigating an IPv6 outage for some machines in ORD (Chicago, Illinois). Downrightnow’s signals remain quiet and DNS is resolving normally, suggesting the issue is isolated to specific networking in that region rather than a broad infrastructure failure.

Cached · Thu, May 21, 2026, 01:23 PM UTC · scope: this incident

// Timeline

  1. Status changed to Operational

    The stored readout moved to Operational with confidence 80.00.

  2. Incident detected

    Major confidence crossed the incident threshold for Fly.io: iPv6 outage for some machines in ORD.

  3. Marked resolved

    The incident was closed after 18 min of observed impact.

  4. Peak confidence reached

    Confidence peaked at 80.00 while the service was marked Operational.

// Signals by source0 sources

No per-source signal payloads were preserved in this incident's snapshot window.

// Aggregate evidence

Confidence scoring

80.00

The incident reached 80.00 peak confidence across 7 stored status snapshots.

User reports

0 / 15m

No elevated user-report volume was preserved in the incident window snapshots.

Status samples

0 affected

The incident row exists, but the bounded snapshot window does not include affected status samples.

Recovery signal

Resolved

Recovery was recorded at Thu, May 21, 2026, 12:21 PM UTC.