# Optimizely: Slow loading and performance issues in Content Marketing Platform (CMP)

> Optimizely status incident “Slow loading and performance issues in Content Marketing Platform (CMP)” on 2026-11-13: impact critical (vendor’s label), 2.5 h, 6 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/optimizely/incidents/t9ks0p7qfzhn
Last updated: 2026-11-13T19:33:37Z

- Impact (vendor’s label): critical
- Status: resolved · edited after publishing
- Started: 2026-11-13 16:02 UTC · Resolved: 2026-11-13 18:30 UTC · Duration: 2.5 h
- Updates: 6 · Affected components: Analytics, Content Marketing Platform - Analytics, Content Marketing Platform - Library, Content Marketing Platform - Open API, Content Marketing Platform - Plan, Content Marketing Platform - Requests, Library, Open API, Plan, Requests
- [Vendor status page: https://status.optimizely.com/incidents/t9ks0p7qfzhn](https://status.optimizely.com/incidents/t9ks0p7qfzhn)
- [Company: Optimizely](https://rewindex.com/company/optimizely.md)

## Timeline of updates

- **investigating** 2026-11-13 16:02 UTC: We are investigating reports that the Optimizely Content Marketing Platform (CMP) is loading slowly or failing to load for some customers. Affected users may see a loading screen that does not finish, or pages that take much longer than usual to open. The issue is intermittent: pages may load, then slow down again when refreshed. Our Engineering team has reproduced the issue and is investigating the cause. We will post an update as soon as we learn more. We apologize for the disruption to your work.
- **investigating** 2026-11-13 16:03 UTC: We are continuing to investigate this issue.
- **investigating** 2026-11-13 16:29 UTC: We have narrowed down the behavior reported in Optimizely Content Marketing Platform (CMP). Based on our latest findings, CMP is not failing to load. Instead, the first load of the application may take up to approximately 60 seconds to complete, and a loading screen may appear during that time. We recommend allowing the page to finish loading rather than refreshing as a temporary workaround. Our Engineering team is continuing to investigate the cause of the delay and to improve load times. We will share more information as soon as we have them at our disposal. We apologize for any inconvenience caused.
- **identified** 2026-11-13 17:34 UTC _(edited after publishing)_: A GA4 (Google Analytics) slowdown caused slow loading and timeouts for CMP organizations using GA4 due to internal dependencies. Our engineering team is rolling out a fix and will update when service is restored.
- **monitoring** 2026-11-13 17:52 UTC _(edited after publishing)_: CMP homepage performance has returned to normal. In case you are still facing the issue, please try clearing your browser cache and reload the page. We are continuing to monitor closely and will post a final update once we confirm the issue is fully resolved.
- **resolved** 2026-11-13 18:30 UTC _(edited after publishing)_: The incident has been resolved.

## Rewindex changes for this incident

- 2026-11-13 16:02 UTC: [Critical incident: Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/change/i1677eb0e85a1b3.md)
- 2026-11-13 16:13 UTC: [Incident updated: Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/change/r8b8e9d873219c7.md)
- 2026-11-13 16:33 UTC: [Incident updated: Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/change/r9c7e81721d5ec3.md)
- 2026-11-13 17:43 UTC: [Incident updated: Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/change/rcde66366dff053.md)
- 2026-11-13 17:53 UTC: [Incident updated: Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/change/r38e5ae1d9f9b10.md)
- 2026-11-13 18:33 UTC: [Incident updated: Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/change/r239a4d7dd4e6ef.md)
- 2026-11-13 19:33 UTC: [Incident silently edited: Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/change/r60ebee278266e5.md)

## Cite this

Status incident (vendor impact label: critical) posted by Optimizely, started 2026-11-13 16:02 UTC, resolved after 2.5 h, 6 update(s); edited after publishing.

- Canonical URL: https://rewindex.com/company/optimizely/incidents/t9ks0p7qfzhn
- Citation: Optimizely, “Slow loading and performance issues in Content Marketing Platform (CMP)” (2026-11-13 16:02 UTC). Archived by Rewindex: https://rewindex.com/company/optimizely/incidents/t9ks0p7qfzhn (CC BY 4.0).
- Markdown link: `[Optimizely: Slow loading and performance issues in Content Marketing Platform (CMP) (2026-11-13)](https://rewindex.com/company/optimizely/incidents/t9ks0p7qfzhn)`


---
Canonical: https://rewindex.com/company/optimizely/incidents/t9ks0p7qfzhn · Markdown: https://rewindex.com/company/optimizely/incidents/t9ks0p7qfzhn.md · JSON: https://rewindex.com/api/v1/companies/optimizely/incidents/t9ks0p7qfzhn · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-14T04:28:16.776Z