Number of server requests

A single user (API key owner) can send up to 10 requests per second.

If this threshold is exceeded, the API key is blocked. The server returns the error Rate limit exceeded. API access will be restored automatically in one second.


API access requires a key. You can get a free API key in the Developer's Dashboard.

Data extraction

Site owners can restrict Validator API access to their websites:

  • Prohibit downloading pages in the robots.txt file. The server returns the error IO error while downloading document.

  • Add special semantic markup to a page. In this case, the page is indexed by search robots.

    <meta property="ya:disallow_api" content="semantic"/>

    The server returns the error Validation is prohibited by site owner.