Is Pub/Sub down?
Last 90 days
99.688% uptime · 2 incidentsWhat Pub/Sub does - and how it fails
Pub/Sub is the global messaging fabric between Google Cloud services - the glue in event-driven architectures, streaming pipelines, and microservice fan-out. Pub/Sub incidents rarely lose messages (durability is its core promise); they show up as delivery latency, subscriber backlog growth, or publish errors in one region.
- Message delivery delays - backlogs grow while publishes still succeed
- Elevated publish error rates or latency in one region
- Push subscriptions failing while pull subscribers keep working (or vice versa)
- Downstream pipeline lag: Dataflow and Cloud Run jobs starving because delivery is delayed
Recent Pub/Sub incidents
Multiple services were experiencing issues in the europe-west2 region.
October 20, 2026 · 6h 8mMultiple services were experiencing issues in the europe-west2 region.
We are investigating an issue where customers may experience timeouts, service degradations, errors, and elevated latencies across multiple products in the us-west1 region.
August 20, 2026 · 3h 40mWe are investigating an issue where customers may experience timeouts, service degradations, errors, and elevated latencies across multiple products in the us-west1 region.
Full analyses live in the post-mortem archive.
Pub/Sub questions
Is Pub/Sub down right now?
The live status above reflects our latest check. Pub/Sub degradation usually means late, not lost - watch subscription backlog (oldest unacked message age) rather than publish success to see real impact.
Will I lose messages during a Pub/Sub incident?
Acknowledged publishes are stored durably and replicated; historical incidents have overwhelmingly been delivery delays, not data loss. Design subscribers to be idempotent so the post-incident redelivery burst is safe.
Does Pub/Sub have an SLA?
Yes - 99.95% monthly uptime. Tiered credits apply below target, must be requested within 30 days, and cap at 50% of the month’s Pub/Sub spend.
Get alerted when Pub/Sub breaks
Instant email the moment we detect an incident - affected services and regions included.
Get outage alerts