Changes / Contentful / Issues with advanced caching on Content Delivery API

Contentful: Major incident: Issues with advanced caching on Content Delivery API

Summary

Contentful reported major issues with advanced caching, specifically Stale While Revalidate (SWR), affecting Content Delivery API and EU data residency - Content Delivery API. The incident started 2026-10-01 09:27 UTC and resolved 2026-10-02 09:43 UTC, lasting 24 h 15 min. A fix resolved the issue for remaining customers after most had already recovered.

Machine-written from the diff below (Sol; type: incident degradation). Check the diff before relying on it.

Major incidentLabel: degradation (model (Jev), 79%)Changed Detected Source: stspg.io

What changed

AddedTitle#1
Before: not present
After: Issues with advanced caching on Content Delivery API
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2026-10-01 09:27 UTC
AddedResolved time#5
Before: not present
After: 2026-10-02 09:43 UTC
AddedAffected components#6
Before: not present
After: Content Delivery API, EU data residency - Content Delivery API
AddedUpdateidentified#7
Before: not present
After: We are investigating issues with advanced caching (specifically Stale While Revalidate (SWR)). We have identified the issue and are working towards a resolution.
AddedUpdateidentified#8
Before: not present
After: The issue has been resolved for most customers. We continue to work on a resolution for everyone.
AddedUpdatemonitoring#9
Before: not present
After: The fix we implemented has resolved the issue for the remaining customers. We continue to monitor the situation.
AddedUpdateresolved#10
Before: not present
After: This issue has been resolved.

First version of this incident archived by Rewindex. View the live incident.

History of this incident

When (UTC)ChangeKind
Major incident: Issues with advanced caching on Content Delivery API (this change)
Contentful reported major issues with advanced caching, specifically Stale While Revalidate (SWR), affecting Content Delivery API and EU data residency - Content Delivery API. The incident started 2026-10-01 09:27 UTC and resolved 2026-10-02 09:43 UTC, lasting 24 h 15 min. A fix resolved the issue for remaining customers after most had already recovered.
Major incident

All Contentful changes → · Contentful profile · Markdown · JSON