curl --request POST \
  --url https://api.iotools.cloud/v1/tool/cache-control-header-builder \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "preset": "staticAsset"
}
'

{
  "tool": "cache-control-header-builder",
  "tool_version": "1.0.1",
  "outputs": {
    "headerOutput": "Cache-Control: public, max-age=31536000, immutable",
    "explanation": [
      {
        "directive": "public",
        "effect": "Any cache — the browser or a shared cache like a CDN — may store this response, even one that would normally be treated as non-cacheable (e.g. an authenticated response)."
      },
      {
        "directive": "max-age=31536000",
        "effect": "The response is considered fresh for 1 year after it's received — applies to both browser and shared caches, unless s-maxage overrides it for shared caches."
      },
      {
        "directive": "immutable",
        "effect": "Tells the browser the response body will never change while it's fresh, so it should skip conditional revalidation entirely — even on a user-triggered reload."
      }
    ],
    "warnings": "No conflicting or redundant directives detected."
  },
  "credits_used": 3,
  "credits_remaining": null
}