Threat Investigation

usercheck.com

Moderate Traffic Tranco #304,252

usercheck.com operates primarily as a developer platform, focusing on email validation api. UserCheck provides an API service that helps businesses identify and block disposable, fake, or invalid email addresses during user sign-up processes. It offers features like syntax validation, MX record checks, and detection of relay services to ensure a legitimate user base. It is operated by UserCheck.

email validationapifraud preventionuser verification
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GET /api/v1/classify?domain=usercheck.com
{
  "domain": "usercheck.com",
  "confidence": "high",
  "category": {
    "purpose": "developer_platform",
    "specialization": "Email Validation API"
  },
  "identity": {
    "headline": "API for real-time email validation and fake user detection",
    "summary": "UserCheck provides an API service that helps businesses identify and block disposable, fake, or invalid email addresses during user sign-up processes. It offers features like syntax validation, MX record checks, and detection of relay services to ensure a legitimate user base.",
    "operator": "UserCheck",
    "parent_entity": null,
    "topics": [
      "email validation",
      "api",
      "fraud prevention",
      "user verification",
      "developer tools"
    ]
  },
  "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": "2003-10-26T04:23:36Z",
    "rank": 304252,
    "hosting_provider": "CLOUDFLARENET - Cloudflare, Inc."
  }
}

Hosting

CLOUDFLARENET - Cloudflare, Inc.

Registered

Oct 26, 2003

Last Updated

Mar 12, 2026

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