All Systems Operational

Uptime over the past 90 days. View historical uptime.
PostHog.com ? Operational
90 days ago
100.0 % uptime
Today
US Cloud 🇺🇸 Operational
90 days ago
99.99 % uptime
Today
App ? Operational
90 days ago
99.96 % uptime
Today
Event and Data Ingestion Operational
90 days ago
99.99 % uptime
Today
Feature Flags and Experiments ? Operational
90 days ago
100.0 % uptime
Today
Session Replay Ingestion Operational
90 days ago
100.0 % uptime
Today
Destinations ? Operational
90 days ago
100.0 % uptime
Today
EU Cloud 🇪🇺 Operational
90 days ago
99.97 % uptime
Today
App ? Operational
90 days ago
99.89 % uptime
Today
Event and Data Ingestion Operational
90 days ago
99.98 % uptime
Today
Feature Flags and Experiments ? Operational
90 days ago
100.0 % uptime
Today
Session Replay Ingestion Operational
90 days ago
100.0 % uptime
Today
Destinations ? Operational
90 days ago
100.0 % uptime
Today
Support APIs Operational
90 days ago
100.0 % uptime
Today
Update Service Operational
90 days ago
100.0 % uptime
Today
License Server Operational
90 days ago
100.0 % uptime
Today
AWS US 🇺🇸 Operational
AWS ec2-us-east-1 Operational
AWS elb-us-east-1 Operational
AWS rds-us-east-1 Operational
AWS elasticache-us-east-1 Operational
AWS kafka-us-east-1 Operational
AWS EU 🇪🇺 Operational
AWS elb-eu-central-1 Operational
AWS elasticache-eu-central-1 Operational
AWS rds-eu-central-1 Operational
AWS ec2-eu-central-1 Operational
AWS kafka-eu-central-1 Operational
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.

System Metrics Month Week Day
US Ingestion End to End Time ?
Fetching
US Decide Endpoint Response Time
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US App Response Time
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US Event/Data Ingestion Response Time
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EU Ingestion End to End Time ?
Fetching
EU App Response Time
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EU Decide Endpoint Response Time
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EU Event/Data Ingestion Endpoint Response Time
Fetching
Apr 4, 2025

No incidents reported today.

Apr 3, 2025

No incidents reported.

Apr 2, 2025

No incidents reported.

Apr 1, 2025
Batch exports not making progress in US Cloud
Resolved - This incident has been resolved.
Apr 1, 21:16 UTC
Monitoring - We have narrowed down the problem to a very small set of Snowflake batch exports that we have manually cancelled. If you were affected we will be reaching out.

All other batch exports are fully recovered or on the path to recovery. Performance of ongoing batch exports will soon be on pace with real time once again.
Apr 1, 18:49 UTC
Investigating - We were unable to make a full recovery, and the issue seems to persist. We are investigating new potential fixes. In the meantime, batch exports will be delayed.
Apr 1, 17:25 UTC
Monitoring - We are monitoring the backfill process for Snowflake batch exports and any pending large batch exports for other destinations. All backfills are progressing normally.

On-going batch exports are operating normally, but users with pending backfills may see us lag behind real time until all the backfilling is done.
Apr 1, 14:00 UTC
Update - We have deployed our fixes and have managed to resolve the concurrency issues with Snowflake batch exports.

Most batch exports besides Snowflake should be fully recovered, with the exception of larger batch exports that will still need some time to work through the backlog.

We will shortly begin backfilling any Snowflake batch exports that were cancelled due to this incident.
Apr 1, 13:22 UTC
Update - We are continuing to work on a fix for this issue.
Apr 1, 12:37 UTC
Identified - We have reasons to believe the cause of the problem is a deadlock happening while connecting to Snowflake. We are attempting to deploy a patch that would deal with the deadlock when it happens, leaving the investigation of what is causing the deadlock for later.

Assuming the patch is successful in addressing the problem we will begin back filling any Snowflake batch exports that were cancelled.
Apr 1, 10:42 UTC
Update - We have reason to believe that the problem is related to Snowflake batch exports. In consequence, most Snowflake batch exports are being cancelled to be retried at a later date. We are investigating how to remediate the problem with Snowflake.

Users of other destinations should see batch exports recovering over time. Depending on the size of the data exported, this recovery could take less or more time.
Apr 1, 09:20 UTC
Investigating - We have been making slow progress on batch exports and a backlog has built up, particularly on larger batch exports. It is taking us some time to work through the backlog, so users may see batch exports be delayed in delivering data.

No data loss has happened nor is it expected.
Apr 1, 07:38 UTC
Posthog Cloud US Maintenance
Completed - The scheduled maintenance has been completed.
Apr 1, 11:18 UTC
Verifying - The maintenance is almost complete, we expect any remaining event lag to be resolved shortly
Apr 1, 09:49 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 1, 08:11 UTC
Scheduled - Posthog Cloud US is undergoing scheduled maintenance. During this time new data and events will be temporarily delayed. No events will be lost
Apr 1, 08:00 UTC
Mar 31, 2025

No incidents reported.

Mar 30, 2025
US ingestion lag
Resolved - After monitoring we have seen that all systems are working as normally.
Mar 30, 16:50 UTC
Monitoring - We have been able to identify the root cause and pushed a fix to get event ingestion back to normal and latency is now back to normal.

We'll keep monitoring the infrastructure.
Mar 30, 14:22 UTC
Investigating - Our ingestion infrastructure is processing slowly causing delays for event ingestion. We are investigating what could be the root cause.
Mar 30, 13:20 UTC
Mar 29, 2025

No incidents reported.

Mar 28, 2025

No incidents reported.

Mar 27, 2025

No incidents reported.

Mar 26, 2025

No incidents reported.

Mar 25, 2025
EU: elevated feature flag evaluation errors
Resolved - EU:
We observed elevated error rates in feature flag evaluation that may have led to some requests timing out between 15:00 UTC and 17:00 UTC.

We're apologizing for this inconvencience and started improving our alerting to catch this earlier.
Mar 25, 15:00 UTC
Posthog Cloud EU Maintenance
Completed - The scheduled maintenance has been completed.
Mar 25, 09:43 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 25, 09:19 UTC
Scheduled - Posthog Cloud EU is undergoing scheduled maintenance. During this time we'll pause ingestion so events will be delayed. No events will be lost
Mar 25, 09:19 UTC
Mar 24, 2025
EU: feature flags and surveys with elevated error rates
Resolved - EU: We were observing increased error rates for feature flags and surveys.

While mitigating first issues with feature flags, we were restarting some internal components, which caused other issues.

Surveys showed elevated error rates between ~15:22 UTC and 15:36 UTC.
Feature flags showed elevated error rates between ~15:00 UTC and 15:36 UTC.

There was a large number of timeouts in our database in the EU region causing high feature flags error rate and service disruptions.

Apologies for this disruption.
Mar 24, 15:00 UTC
US: Increased person processing load is causing locks on the replica DB
Resolved - This incident has been resolved.
Mar 24, 09:50 UTC
Monitoring - We scaled up the processing to ease out the spike. We are monitoring the situation.
Mar 21, 23:56 UTC
Identified - Performance on the posthog read replica database is a bit degraded due to a high load of person ingestion processing. This is occasionally affecting flag evaluation since the feature flag service depends on the read replica database
Mar 21, 21:05 UTC
Mar 23, 2025

No incidents reported.

Mar 22, 2025

No incidents reported.

Mar 21, 2025
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