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Some reports of 504 Timeouts
Monitoring - We have received some reports of 504 errors this morning. We are monitoring to avoid further occurrences.

We are looking into any gaps in our new monitoring regime, which has drastically reduced occurrences, to see where we can further improve.
Oct 13, 2025 - 11:02 PDT
Coveralls.io Web ? Operational
Coveralls.io API ? Operational
GitHub Operational
Travis CI API Operational
Pusher Presence channels Operational
Pusher WebSocket client API Operational
Stripe API Operational
New Relic Metric API : US Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
System Metrics Month Week Day
Average Web/API Response Time
Fetching
Coverage Calculation Background Job Dequeue Time ?
Fetching
Oct 13, 2025

Unresolved incident: Some reports of 504 Timeouts.

Oct 12, 2025

No incidents reported.

Oct 11, 2025

No incidents reported.

Oct 10, 2025
504 Timeouts (Resolved)
Resolved - This incident is resolved.

We have applied an additional layer of monitoring that should help us catch these cases earlier.
Oct 10, 12:00 PDT
Update - Based on the details of today's incident, we've added another layer of monitoring that should give us earlier indications of this error state and allow us to respond more quickly.
Oct 10, 09:46 PDT
Monitoring - We've received results of 504 Timeout errors from 7am PDT through 8:15am PDT. We have addressed the issue and issue was resolved as 8:19am PDT.

We are monitoring for further issues.
Oct 10, 08:23 PDT
Oct 9, 2025

No incidents reported.

Oct 8, 2025

No incidents reported.

Oct 7, 2025

No incidents reported.

Oct 6, 2025

No incidents reported.

Oct 5, 2025

No incidents reported.

Oct 4, 2025

No incidents reported.

Oct 3, 2025

No incidents reported.

Oct 2, 2025

No incidents reported.

Oct 1, 2025

No incidents reported.

Sep 30, 2025

No incidents reported.

Sep 29, 2025
504 Timeout Errors on Coverage Uploads
Resolved - We are closing this incident after recent mitigations and a weekend without any reports.

We continue to implement mitigations and infrastructure changes we believe will further reduce incidents of this error type.
Sep 29, 08:56 PDT
Monitoring - All systems operational.

During our US overnight hours (PDT / GMT-7), we received additional reports of 504 timeout errors affecting coverage uploads. The issue has since been resolved, and we are actively monitoring for further occurrences.

We have already implemented several mitigations over the past few weeks, and additional measures will be deployed today to further reduce the likelihood of these errors, particularly for our international customers.

If you experience a 504 error, the most helpful details you can provide are:

1. A timestamp or timeframe of the error
2. Any Cloudflare Ray ID shown on the error page

Please share these details in our public tracking issue here:
https://github.com/lemurheavy/coveralls-public/issues/1824

These reports are invaluable as we continue to investigate and refine our mitigations.
Sep 26, 08:28 PDT
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