Threat Investigation

ninja.co.jp

Caution Moderate Traffic Tranco #301,072

ninja.co.jp operates primarily as a content publishing platform, focusing on web tools. Ninja Tools provides a variety of web services including blog hosting, website creation, traffic analytics, and advertising solutions for users in Japan. It is operated by Ninja Tools, Inc..

web toolsbloggingwebsite hostingweb analytics
Network Infrastructure

Historical and current IP address mappings for this domain.

Community Intelligence

Real experiences from people who visited this domain

Recent Threat Analysis

URLert analyzed recent scan activity for ninja.co.jp

No public scans recorded recently

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Security Considerations

While ninja.co.jp is an established platform, these capabilities require extra vigilance.

Form Builder

ninja.co.jp enables anyone to create forms that collect user data. Attackers use this to create fake login pages or payment forms. Never enter passwords or financial information on forms hosted here unless you initiated the process yourself.

User-Generated Content

ninja.co.jp hosts content created by its users, not the platform operator. Individual posts, profiles, or pages may contain scams, misinformation, or phishing attempts that the platform hasn't yet detected or removed.

Custom Subdomains

ninja.co.jp allows users to create custom addresses like "anything.ninja.co.jp". An address like "paypal-secure.ninja.co.jp" may look official but is actually controlled by whoever registered that subdomain—not Ninja Tools, Inc..

Remember: The platform itself is established, but even established platforms can be abused.

Something wrong?
Domain owner?
Developer API

Integrate Domain Intelligence

Access this classification data programmatically via our API.

GET /api/v1/classify?domain=ninja.co.jp
{
  "domain": "ninja.co.jp",
  "confidence": "high",
  "category": {
    "purpose": "content_publishing",
    "specialization": "Web Tools Platform"
  },
  "identity": {
    "headline": "Comprehensive suite of web tools for personal and business use",
    "summary": "Ninja Tools provides a variety of web services including blog hosting, website creation, traffic analytics, and advertising solutions for users in Japan.",
    "operator": "Ninja Tools, Inc.",
    "parent_entity": null,
    "topics": [
      "web tools",
      "blogging",
      "website hosting",
      "web analytics",
      "digital advertising"
    ]
  },
  "functions": {
    "is_ugc_platform": true,
    "is_file_host": false,
    "is_url_shortener": false,
    "is_public_idp": false,
    "is_crypto_platform": false,
    "allows_user_subdomains": true,
    "is_form_builder": true,
    "is_document_host": false
  },
  "facts": {
    "registered_date": "2019-03-15T00:00:00Z",
    "rank": 301072,
    "hosting_provider": "IDCF IDC Frontier Inc."
  }
}

Hosting

IDCF IDC Frontier Inc.

Registered

Mar 15, 2019

Last Updated

Mar 13, 2026

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