GitHub Status

Webhook delivery is delayed

Resolvedminor impactVendor link

Started

Mar 18, 6:51 PM

Resolved

Mar 18, 7:46 PM

Duration

55m

Affected Components

Webhooks

Update Timeline

ResolvedMar 18, 7:46 PM

On March 18, 2026, between 18:18 UTC and 19:46 UTC all webhook deliveries experienced elevated latency. During this time, average delivery latency increased from a baseline of approximately 5 seconds to a peak of approximately 160 seconds. This was due to resource constraints in the webhook delivery pipeline, which caused queue backlog growth and increased delivery latency. We mitigated the incident by shifting traffic and adding capacity, after which webhook delivery latency returned to normal. We are working to improve capacity management and detection in the webhook delivery pipeline to help prevent similar issues in the future.

InvestigatingMar 18, 7:25 PM

We are seeing recovery and are continuing to monitor the latency for webhook deliveries

InvestigatingMar 18, 6:51 PM

We are investigating reports of degraded performance for Webhooks

Webhook delivery is delayed — GitHub Incident | DevHelm