# Klaviyo: Major incident: Klaviyo app slowness

> Major incident: Klaviyo app slowness. Detected 2026-11-04 by Rewindex: what changed on Klaviyo’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/i7b899d0ce493c8
Last updated: 2026-11-04T16:23:48Z

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-11-04 16:17 UTC · Detected: 2026-11-04 16:23 UTC
- [Source: https://status.klaviyo.com/incidents/8ddxjfk4y44g](https://status.klaviyo.com/incidents/8ddxjfk4y44g)
- [Company: Klaviyo](https://rewindex.com/company/klaviyo.md)
- Versions: before (none: first archived) → after incident\_version:249/8ddxjfk4y44g@0e6491678789
- Change 1 of 7 for this incident

Incident page (full timeline): [Klaviyo app slowness](https://rewindex.com/company/klaviyo/incidents/8ddxjfk4y44g.md)
## What changed

**1. Added: Title**

```diff
+ Klaviyo app slowness
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ investigating
```

**4. Added: Start time**

```diff
+ 2026-11-04 16:17 UTC
```

**5. Added: Affected components**

```diff
+ Klaviyo App, Platform - Klaviyo App
```

**6. Added: Update** (investigating) · 2026-11-04 16:17 UTC

```diff
+ Some customers may be experiencing slow load times across the Klaviyo app. Our team is actively looking into the cause. We will share another update as soon as we have more information.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-11-04 16:17 UTC | Major incident: Klaviyo app slowness (this change) | major |
| 2026-11-04 17:03 UTC | [Incident updated: Klaviyo app slowness](https://rewindex.com/change/r4448ecbbac689a.md) |  |
| 2026-11-04 17:43 UTC | [Incident updated: Klaviyo app slowness](https://rewindex.com/change/r775e69cdb4afa1.md) |  |
| 2026-11-04 18:33 UTC | [Incident updated: Klaviyo app slowness](https://rewindex.com/change/r4ff06e17b7c678.md) |  |
| 2026-11-04 19:33 UTC | [Incident updated: Klaviyo app slowness](https://rewindex.com/change/rb9e8828847dc74.md) |  |
| 2026-11-04 20:53 UTC | [Incident updated: Klaviyo app slowness](https://rewindex.com/change/ra235dd869b5199.md) |  |
| 2026-11-04 22:03 UTC | [Incident updated: Klaviyo app slowness](https://rewindex.com/change/r40c40d6dbc7cb6.md) |  |

Next: [change](https://rewindex.com/change/r4448ecbbac689a.md) · All Klaviyo changes: [timeline](https://rewindex.com/company/klaviyo/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

Major incident: Klaviyo app slowness on Klaviyo’s status page, changed 2026-11-04 16:17 UTC (change 1 of 7).

- Canonical URL: https://rewindex.com/change/i7b899d0ce493c8
- Citation: Klaviyo, “Major incident: Klaviyo app slowness” (2026-11-04 16:17 UTC). Archived by Rewindex: https://rewindex.com/change/i7b899d0ce493c8 (CC BY 4.0).
- Markdown link: `[Klaviyo: Major incident: Klaviyo app slowness (2026-11-04)](https://rewindex.com/change/i7b899d0ce493c8)`


---
Canonical: https://rewindex.com/change/i7b899d0ce493c8 · Markdown: https://rewindex.com/change/i7b899d0ce493c8.md · JSON: https://rewindex.com/api/v1/changes/i7b899d0ce493c8 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T22:32:06.238Z