Threat Investigation

ultrablock.org

Low Traffic Tranco #960,544

ultrablock.org operates primarily as a corporate website, focusing on browser privacy extension. UltraBlock is a privacy-focused browser extension designed to block advertisements, trackers, and third-party cookies to improve browsing speed and user privacy. It is developed and operated by the Dutch company Nirble BV. It is operated by Nirble BV.

ad blockerprivacybrowser extensiontracker blocking
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GET /api/v1/classify?domain=ultrablock.org
{
  "domain": "ultrablock.org",
  "confidence": "high",
  "category": {
    "purpose": "corporate_website",
    "specialization": "Browser Privacy Extension"
  },
  "identity": {
    "headline": "UltraBlock: Browser extension to block ads, trackers, and third-party cookies",
    "summary": "UltraBlock is a privacy-focused browser extension designed to block advertisements, trackers, and third-party cookies to improve browsing speed and user privacy. It is developed and operated by the Dutch company Nirble BV.",
    "operator": "Nirble BV",
    "parent_entity": null,
    "topics": [
      "ad blocker",
      "privacy",
      "browser extension",
      "tracker blocking",
      "web security"
    ]
  },
  "functions": {
    "is_ugc_platform": false,
    "is_file_host": false,
    "is_url_shortener": false,
    "is_public_idp": false,
    "is_crypto_platform": false,
    "allows_user_subdomains": false,
    "is_form_builder": false,
    "is_document_host": false
  },
  "facts": {
    "registered_date": "2017-01-31T09:01:46Z",
    "rank": 960544,
    "hosting_provider": "HETZNER-AS Hetzner Online GmbH"
  }
}

Hosting

HETZNER-AS Hetzner Online GmbH

Registered

Jan 31, 2017

Last Updated

Mar 11, 2026

Domain data sourced from WHOIS, Tranco rankings, and URLert's classification engine.