---
title: Slow down suspicious requests
description: Define a delay to be used when incoming requests match a rule you consider suspicious based on the bot score.
image: https://developers.cloudflare.com/core-services-preview.png
---

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# Slow down suspicious requests

Define a delay to be used when incoming requests match a rule you consider suspicious based on the bot score.

## Snippet code

JavaScript

```
export default {  async fetch(request) {    // Define delay    const delay_in_seconds = 5;    // Introduce a delay    await new Promise((resolve) =>      setTimeout(resolve, delay_in_seconds * 1000),    ); // Set delay in milliseconds
    // Pass the request to the origin    const response = await fetch(request);    return response;  },};
```

## Snippet rule

Configure a custom filter expression:

| Field     | Operator  | Value |
| --------- | --------- | ----- |
| Bot Score | less than | 10    |

If you are using the Expression Editor, enter the following expression:

```
(cf.bot_management.score lt 10)
```

```json
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```