# Salesforce: Performance Degradation: Core Service

> Salesforce status incident “Performance Degradation: Core Service” on 2026-11-10: impact minor (vendor’s label), 1.8 h, 5 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/salesforce/incidents/20004588
Last updated: 2026-11-10T17:03:00Z

- Impact (vendor’s label): minor
- Status: resolved · edited after publishing
- Started: 2026-11-10 14:53 UTC · Resolved: 2026-11-10 16:40 UTC · Duration: 1.8 h
- Updates: 5 · Affected components: Core Service, 12 instances
- [Vendor status page: https://status.salesforce.com/incidents/20004588](https://status.salesforce.com/incidents/20004588)
- [Company: Salesforce](https://rewindex.com/company/salesforce.md)

## Timeline of updates

- **update** 2026-11-10 15:40 UTC: Customers on affected Salesforce Core instances are experiencing slower-than-normal page load response times across most operations. We are investigating errors, and we are reviewing recent changes and slow-running requests on the affected instances. We will share our next update in 30 minutes, or sooner if we have more information.
- **update** 2026-11-10 15:54 UTC: Customers on impacted Salesforce Core instances are still experiencing slower-than-normal page load times. We're investigating a possible link to the large number of customer orgs that moved between instances over the weekend, and we're confirming which instances were impacted. We're also reviewing two recent changes common to some impacted instances and evaluating ways to spread the load more evenly across our systems. We'll share our next update in 30 minutes, or sooner if we have more information.
- **update** 2026-11-10 16:18 UTC: Investigations have highlighted that the impact radius is broader than initially understood. We have updated the posting to reflect the additional instances experiencing impact, and customers in these instances will receive communications related to this incident going forward.
- **update** 2026-11-10 16:21 UTC _(edited after publishing)_: Page load times on impacted instances are stable but remain slower than normal, and we haven't yet confirmed recovery. We're preparing a change to move the impacted instances to a different part of our caching system. We'll provide an update in 30 minutes, or sooner if we have more information.
- **update** 2026-11-10 16:57 UTC: We resolved the slow page load times affecting the impacted instances. A rebalancing of our caching system slowed page load times. We stopped the rebalancing and moved traffic to a different part of our caching system. Page load times returned to normal and have remained stable. We apologize for how this incident may have affected our customers and their businesses. We'll investigate further to confirm the trigger and underlying cause, and to prevent this from happening again.

## Rewindex changes for this incident

- 2026-11-10 16:03 UTC: [Incident updated: Performance Degradation: Core Service](https://rewindex.com/change/r3af411f1f7ea24.md)
- 2026-11-10 16:33 UTC: [Incident updated: Performance Degradation: Core Service](https://rewindex.com/change/rc857e5cc788a44.md)
- 2026-11-10 17:03 UTC: [Incident updated: Performance Degradation: Core Service](https://rewindex.com/change/raeb58b4df87dec.md)

## Cite this

Status incident (vendor impact label: minor) posted by Salesforce, started 2026-11-10 14:53 UTC, resolved after 1.8 h, 5 update(s); edited after publishing.

- Canonical URL: https://rewindex.com/company/salesforce/incidents/20004588
- Citation: Salesforce, “Performance Degradation: Core Service” (2026-11-10 14:53 UTC). Archived by Rewindex: https://rewindex.com/company/salesforce/incidents/20004588 (CC BY 4.0).
- Markdown link: `[Salesforce: Performance Degradation: Core Service (2026-11-10)](https://rewindex.com/company/salesforce/incidents/20004588)`


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Canonical: https://rewindex.com/company/salesforce/incidents/20004588 · Markdown: https://rewindex.com/company/salesforce/incidents/20004588.md · JSON: https://rewindex.com/api/v1/companies/salesforce/incidents/20004588 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-10T17:32:26.770Z