> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fetchfox.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Set crawl priorities

> You can control which pages FetchFox visits during a crawl

You can use the `priority` parameter to control crawl scope.

The most important fields are:

* `only`: whitelist URL patterns to allow.
* `skip`: blacklist URL patterns to avoid.

If both are provided, FetchFox uses `only` to constrain candidates and `skip` to remove unwanted URLs.

Example:

<CodeGroup>
  ```bash curl theme={null}
  curl -X POST https://api.fetchfox.ai/api/crawl \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $FETCHFOX_API_KEY" \
  -d '{
      "pattern":"https://example.com/shopping/*",
      "priority": {
        "only": [
          "https://example.com/shopping/*"
        ],
        "skip": [
          "https://example.com/shopping/jeans/*",
          "https://example.com/shopping/pants/*"
        ]
      },
      "maxVisits": 50
  }'
  ```
</CodeGroup>

This is useful when you only want one part of a large site.

Keep in mind: `priority` controls what the crawler chooses to visit. The final `results.hits` set is still based on crawl discovery and pattern matching.