---
title: Error codes
description: Error codes returned by Turnstile widgets and their meanings.
image: https://developers.cloudflare.com/core-services-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/turnstile/llms.txt  
> Use this file to discover all available pages before exploring further.

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### Tags

[ Debugging ](https://developers.cloudflare.com/search/?tags=Debugging) 

# Error codes

Note

When an error code is marked with `*`, the remaining digits can vary and are for internal use.

| Error Code | Description               | Retry | Troubleshooting                                                                            |
| ---------- | ------------------------- | ----- | ------------------------------------------------------------------------------------------ |
| 110100     | Invalid sitekey           | No    | Verify the sitekey in [Cloudflare dashboard ↗](https://dash.cloudflare.com/).              |
| 110110     | Sitekey not found         | No    | Check sitekey spelling and dashboard configuration.                                        |
| 110200     | Domain not authorized     | No    | Add current domain in Hostname Management.                                                 |
| 110600     | Challenge timed out       | Yes   | The visitor's clock may be wrong, or the challenge took too long.                          |
| 110620     | Interaction timed out     | Yes   | The visitor did not interact with the widget in time. Reset with turnstile.reset().        |
| 200100     | Clock or cache problem    | No    | The visitor's clock is wrong or the challenge was cached by an intermediary.               |
| 200500     | Iframe load error         | Yes   | The Turnstile iframe could not load. Check if challenges.cloudflare.com is blocked.        |
| 300\*      | Generic challenge failure | Yes   | Bot behavior detected. Refer to [troubleshooting](#troubleshooting).                       |
| 400020     | Invalid sitekey           | No    | Verify the sitekey in [Cloudflare dashboard ↗](https://dash.cloudflare.com/).              |
| 400070     | Sitekey disabled          | No    | The sitekey is disabled. Check the [Cloudflare dashboard ↗](https://dash.cloudflare.com/). |
| 600\*      | Generic challenge failure | Yes   | Bot behavior detected. Refer to [troubleshooting](#troubleshooting).                       |

---

## Troubleshooting

You can troubleshoot these error codes using the following recommendations:

1. Verify your browser compatibility.  
   * Turnstile supports all major browsers, except Internet Explorer.  
   * Ensure your browser is up to date. For more information, refer to our [Supported browsers](https://developers.cloudflare.com/cloudflare-challenges/reference/supported-browsers/).  
   * Run a test on the [compatibility checking tool ↗](https://browser-compat.turnstile.workers.dev/).
2. Disable your browser extensions.  
   * Some browser extensions, such as ad blockers, may block the scripts Turnstile needs to operate.  
   * Temporarily disable all extensions and reload the page.
3. Enable JavaScript.  
   * Turnstile requires JavaScript to run. Ensure it is enabled in your browser settings. Refer to your browser's documentation for instructions on enabling JavaScript.
4. Try Incognito or Private mode.  
   * Use your browser's incognito or private mode to rule out issues caused by extensions or cached data.
5. Test another browser or device.  
   * Switch to a different browser or device to see if the issue is specific to your current setup.
6. Avoid VPNs or proxies.  
   * Some virtual private networks (VPN) or proxies may interfere with Turnstile. Disable them temporarily to test.
7. Switch to a different network.  
   * Your current network may have restrictions causing Turnstile challenges to fail. Try switching to another network, such as a mobile hotspot.

Error code `401`

Turnstile may occasionally generate a `401` Unauthorized error in your browser console during a security check. This is not typically a problem with your implementation. This error often occurs when the widget attempts to request a [Private Access Token](https://developers.cloudflare.com/cloudflare-challenges/reference/private-access-tokens/) that your device or browser does not support yet.

You can generally safely ignore the `401` error, as it is an expected part of Turnstile's underlying Challenge Platform workflow. If the widget is successfully resolving and you are receiving a token, no action is required.

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/turnstile/","name":"Turnstile"}},{"@type":"ListItem","position":3,"item":{"@id":"/turnstile/troubleshooting/","name":"Troubleshooting"}},{"@type":"ListItem","position":4,"item":{"@id":"/turnstile/troubleshooting/client-side-errors/","name":"Client-side errors"}},{"@type":"ListItem","position":5,"item":{"@id":"/turnstile/troubleshooting/client-side-errors/error-codes/","name":"Error codes"}}]}
```