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

> Critical incident: Slow loading and performance issues in Content Marketing Platform (CMP). Detected 2026-11-13 by Rewindex: what changed on Optimizely’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/i1677eb0e85a1b3
Last updated: 2026-11-13T16:03:39Z

**Summary:** _summary pending_
- Kind: Major incident · Label: critical (vendor)
- Changed: 2026-11-13 16:02 UTC · Detected: 2026-11-13 16:03 UTC
- [Source: https://status.optimizely.com/incidents/t9ks0p7qfzhn](https://status.optimizely.com/incidents/t9ks0p7qfzhn)
- [Company: Optimizely](https://rewindex.com/company/optimizely.md)
- Versions: before (none: first archived) → after incident\_version:252/t9ks0p7qfzhn@18fbb01ff6d8
- Change 1 of 7 for this incident

Incident page (full timeline): [Slow loading and performance issues in Content Marketing Platform (CMP)](https://rewindex.com/company/optimizely/incidents/t9ks0p7qfzhn.md)
## What changed

**1. Added: Title**

```diff
+ Slow loading and performance issues in Content Marketing Platform (CMP)
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ investigating
```

**4. Added: Start time**

```diff
+ 2026-11-13 16:02 UTC
```

**5. Added: Affected components**

```diff
+ 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
```

**6. Added: Update** (investigating) · 2026-11-13 16:02 UTC

```diff
+ 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.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-11-13 16:02 UTC | Critical incident: Slow loading and performance issues in Content Marketing Platform (CMP) (this change) | critical |
| 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) |  |

Next: [change](https://rewindex.com/change/r8b8e9d873219c7.md) · All Optimizely changes: [timeline](https://rewindex.com/company/optimizely/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._

## Cite this

Critical incident: Slow loading and performance issues in Content Marketing Platform (CMP) on Optimizely’s status page, changed 2026-11-13 16:02 UTC (change 1 of 7).

- Canonical URL: https://rewindex.com/change/i1677eb0e85a1b3
- Citation: Optimizely, “Critical incident: Slow loading and performance issues in Content Marketing Platform (CMP)” (2026-11-13 16:02 UTC). Archived by Rewindex: https://rewindex.com/change/i1677eb0e85a1b3 (CC BY 4.0).
- Markdown link: `[Optimizely: Critical incident: Slow loading and performance issues in Content Marketing Platform (CMP) (2026-11-13)](https://rewindex.com/change/i1677eb0e85a1b3)`


---
Canonical: https://rewindex.com/change/i1677eb0e85a1b3 · Markdown: https://rewindex.com/change/i1677eb0e85a1b3.md · JSON: https://rewindex.com/api/v1/changes/i1677eb0e85a1b3 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-14T04:28:11.576Z