Current System Status
All systems are operating normally. Last updated: March 2, 2026 at 09:15 UTC.
Uptime History
k&z maintains industry-leading availability across all services. The following table shows monthly uptime percentages for the past six months:
| Service | Sep 2025 | Oct 2025 | Nov 2025 | Dec 2025 | Jan 2026 | Feb 2026 |
|---|---|---|---|---|---|---|
| QPU Clusters | 99.97% | 99.99% | 99.95% | 99.98% | 99.99% | 99.97% |
| Hybrid HPC | 99.99% | 99.99% | 99.98% | 99.99% | 100.00% | 99.99% |
| API Gateway | 99.99% | 100.00% | 99.99% | 99.99% | 99.99% | 100.00% |
| Dashboard | 99.98% | 99.99% | 99.97% | 99.99% | 99.99% | 99.99% |
| Billing | 100.00% | 99.99% | 100.00% | 99.99% | 100.00% | 100.00% |
Our SLA guarantees 99.95% uptime for QPU clusters and 99.99% for the API gateway. See our SLA & Uptime Policy for full details on service credits and exclusions.
Recent Incidents
February 18, 2026 — QPU Cluster Zurich: Scheduled Maintenance
Duration: 02:00 – 04:30 UTC (2.5 hours)
Impact: QPU Block ZH-03 unavailable during cryogenic system calibration. Jobs were automatically rerouted to ZH-01, ZH-02, and ZH-04. No customer-facing impact for users on automatic device selection.
Status: Resolved — maintenance completed successfully, all blocks returned to service.
January 29, 2026 — API Gateway: Elevated Latency
Duration: 14:22 – 14:47 UTC (25 minutes)
Impact: API response times increased to p99 of 380ms (normal: ~42ms) due to a configuration deployment that triggered excessive TLS handshake renegotiation. No requests were dropped; all jobs continued to process normally.
Status: Resolved — configuration rolled back, root cause addressed in subsequent deployment.
December 12, 2025 — Hybrid HPC: Partial Degradation
Duration: 08:15 – 09:02 UTC (47 minutes)
Impact: 12 of 48 classical compute nodes in the US East region became unresponsive due to a firmware update failure. Hybrid workflows using those nodes experienced increased queue times. Pure QPU jobs were unaffected.
Status: Resolved — nodes rebooted with corrected firmware, all capacity restored.
Scheduled Maintenance
Upcoming planned maintenance windows:
- March 15, 2026 — 02:00–05:00 UTC — QPU Block US-E-02 cryogenic cycle maintenance. Automatic job rerouting will be enabled.
- March 22, 2026 — 01:00–02:00 UTC — API Gateway certificate rotation. No expected downtime; brief increase in latency possible during rollover.
Incident Reporting
If you are experiencing an issue that is not reflected on this page, please report it through one of the following channels:
- Email: support@kandz.co
- Support Portal: Support Center — create a priority ticket
- Phone (Enterprise): +41 44 123 4567 (24/7 hotline for Enterprise customers)
Subscribe to Updates
Stay informed about service status changes and scheduled maintenance:
- Email notifications — Configure per-service alerts in your Console → Notifications settings.
- Webhook integration — Receive status events via webhook to your Slack, PagerDuty, or custom endpoint.
- RSS feed — Subscribe at
https://status.kandz.co/feed.xmlfor a machine-readable incident feed.