# Retool: Major incident: Some antivirus products are blocking retool.app

> Major incident: Some antivirus products are blocking retool.app. Detected 2026-11-09 by Rewindex: what changed on Retool’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/i62c46a40dccc59
Last updated: 2026-11-09T21:33:49Z

**Summary:** _summary pending_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-11-09 21:30 UTC · Detected: 2026-11-09 21:33 UTC
- [Source: https://status.retool.com/incidents/9c303f1k0sgn](https://status.retool.com/incidents/9c303f1k0sgn)
- [Company: Retool](https://rewindex.com/company/retool.md)
- Versions: before (none: first archived) → after incident\_version:204/9c303f1k0sgn@bc6e2680b79f
- Change 1 of 2 for this incident

Incident page (full timeline): [Some antivirus products are blocking retool.app](https://rewindex.com/company/retool/incidents/9c303f1k0sgn.md)
## What changed

**1. Added: Title**

```diff
+ Some antivirus products are blocking retool.app
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ investigating
```

**4. Added: Start time**

```diff
+ 2026-11-09 21:30 UTC
```

**5. Added: Affected components**

```diff
+ New app builder
```

**6. Added: Update** (investigating) · 2026-11-09 21:30 UTC

```diff
+ Some customers report that Norton, AVG, and other safe browsing vendors are flagging retool.app as dangerous and blocking it. Affected users may see a “dangerous webpage” warning or be unable to load published Retool apps or the app builder preview. Retool services are operating normally. We believe the block comes from how these products classify the domain. We are submitting reclassification requests to each vendor and following up with them. If your IT team manages these products, they may be able to add an exception for *.retool.app.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-11-09 21:30 UTC | Major incident: Some antivirus products are blocking retool.app (this change) | outage |
| 2026-11-10 02:03 UTC | [Incident updated: Some antivirus products are blocking retool.app](https://rewindex.com/change/r97d287af920d8e.md) | Normal progress |

Next: [change](https://rewindex.com/change/r97d287af920d8e.md) · All Retool changes: [timeline](https://rewindex.com/company/retool/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: Some antivirus products are blocking retool.app on Retool’s status page, changed 2026-11-09 21:30 UTC (change 1 of 2).

- Canonical URL: https://rewindex.com/change/i62c46a40dccc59
- Citation: Retool, “Major incident: Some antivirus products are blocking retool.app” (2026-11-09 21:30 UTC). Archived by Rewindex: https://rewindex.com/change/i62c46a40dccc59 (CC BY 4.0).
- Markdown link: `[Retool: Major incident: Some antivirus products are blocking retool.app (2026-11-09)](https://rewindex.com/change/i62c46a40dccc59)`


---
Canonical: https://rewindex.com/change/i62c46a40dccc59 · Markdown: https://rewindex.com/change/i62c46a40dccc59.md · JSON: https://rewindex.com/api/v1/changes/i62c46a40dccc59 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-10T18:04:17.779Z