# Validate a site — CacheBoost API > Trigger an ownership check and mark the site as validated. Source: https://www.cache-boost.com/support/api-reference/sites/validate.md Language: en --- Triggers an ownership check for a site. CacheBoost makes an HTTP request to the site and looks for the validation token. The check is synchronous — the result is returned immediately. **`POST /v1/sites/{id}/validate`** — Scope: `sites:write` CacheBoost tries two methods (HTTPS then HTTP): 1. **HTML file** — `{validation_token}.html` must be accessible at the site root and return HTTP 200. 2. **Meta tag** — the homepage must contain `` in ``. The `validation_token` is returned when creating a site (`POST /v1/sites`) and via `GET /v1/sites/{id}`. ## Example request ```bash curl -X POST https://api.cache-boost.com/v1/sites/42/validate \ -H "Authorization: Bearer cb_live_YOUR_KEY" ``` ## Responses `200` — Validation succeeded: ```json { "validated": true } ``` `200` — Already validated: ```json { "validated": true, "already_validated": true } ``` `422` — Token not found: ```json { "validated": false, "error": "Validation token not found on the site." } ``` ## Errors | Code | Description | |------|-------------| | `401` | Missing or invalid API key | | `403` | Insufficient scope (`sites:write` required) | | `404` | Site not found | | `422` | Validation token not found on the site | --- **CacheBoost** — Automatic cache warming for faster websites. - Website: https://www.cache-boost.com - Full content (all pages): https://www.cache-boost.com/llms-full.txt - LLM index: https://www.cache-boost.com/llms.txt - Documentation: https://www.cache-boost.com/support/getting-started/introduction - Start free: https://www.cache-boost.com/try