---
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://edgetunnel-b2h.pages.dev/core-services-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://edgetunnel-b2h.pages.dev/rules/llms.txt  
> Use this file to discover all available pages before exploring further. 

[Skip to content](#%5Ftop) 

# 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**

```js
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:

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

```json
{"@context":"https://schema.org","@type":"TechArticle","@id":"https://edgetunnel-b2h.pages.dev/rules/snippets/examples/slow-suspicious-requests/#page","headline":"Slow down suspicious requests · Cloudflare Rules docs","description":"Define a delay to be used when incoming requests match a rule you consider suspicious based on the bot score.","url":"https://edgetunnel-b2h.pages.dev/rules/snippets/examples/slow-suspicious-requests/","inLanguage":"en","image":"https://edgetunnel-b2h.pages.dev/core-services-preview.png","dateModified":"2025-10-13","publisher":{"@type":"Organization","name":"Cloudflare","url":"https://www.cloudflare.com/"},"isPartOf":{"@type":"WebSite","@id":"https://edgetunnel-b2h.pages.dev/#website","name":"Cloudflare Docs","url":"https://edgetunnel-b2h.pages.dev/"},"keywords":["Request modification"]}
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/rules/","name":"Rules"}},{"@type":"ListItem","position":3,"item":{"@id":"/rules/snippets/","name":"Cloudflare Snippets"}},{"@type":"ListItem","position":4,"item":{"@id":"/rules/snippets/examples/","name":"Snippets examples"}},{"@type":"ListItem","position":5,"item":{"@id":"/rules/snippets/examples/slow-suspicious-requests/","name":"Slow down suspicious requests"}}]}
```