All Systems Operational

Uptime over the past 90 days. View historical uptime.
Recursive DNS Services Operational
90 days ago
100.0 % uptime
Today
Current Status Operational
90 days ago
100.0 % uptime
Today
Past incidents (last week) Operational
90 days ago
100.0 % uptime
Today
Scheduled Maintenance Operational
90 days ago
100.0 % uptime
Today
Threat Intelligence API Operational
90 days ago
100.0 % uptime
Today
Website Operational
90 days ago
100.0 % uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Dec 26, 2025

No incidents reported today.

Dec 25, 2025

No incidents reported.

Dec 24, 2025

No incidents reported.

Dec 23, 2025

No incidents reported.

Dec 22, 2025

No incidents reported.

Dec 21, 2025

No incidents reported.

Dec 20, 2025

No incidents reported.

Dec 19, 2025

No incidents reported.

Dec 18, 2025
Brasilia (qbsb1) - Emergency Network Maintenance
Resolved - Services have been restored in Brasilia (qbsb1).

Maintenance Start: 13:45 UTC, December 18
Maintenance Stop: 15:00 UTC, December 18
Dec 18, 15:29 UTC
Investigating - Quad9's Brasilia (qbsb1) PoP will be taken out of service for several hours for an emergency network maintenance. Quad9 users routing to that location will be redirected to Sao Paulo or Curitiba during this maintenance.

Maintenance Start: 13:45 UTC, December 18
Dec 18, 13:36 UTC
Dec 17, 2025
Chicago (ORD) - Service Degredation
Resolved - We have deployed the aforementioned replacement and additional core servers in Chicago (ORD), and should be at full performance, with additional capacity and redundancy.

We apologize for any inconvenience.

Issue Start: 15:05 UTC, December 17
Issue Stop: 19:50 UTC, December 17
Dec 17, 20:09 UTC
Investigating - We have experienced hardware failure on 1 of our core servers in Chicago (ORD). As a result, there may be elevated timeouts or DNS retries.

We are in the process of deploying 2 core servers; one to replace the failed server, and one to add additional capacity to improve redundancy.

We are aiming to bring up the 2 new core servers within 24 hours.

Issue Start: 15:05 UTC, December 17
Dec 17, 15:20 UTC
Dec 16, 2025

No incidents reported.

Dec 15, 2025

No incidents reported.

Dec 14, 2025

No incidents reported.

Dec 13, 2025

No incidents reported.

Dec 12, 2025

No incidents reported.

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