Threat Investigation

mail-tester.com

Trusted High Traffic Tranco #44,239

mail-tester.com operates primarily as a developer platform, focusing on email deliverability testing. Mail-tester is a specialized service that helps users analyze the quality of their emails to prevent them from being marked as spam. It provides detailed reports on email authentication protocols like SPF, DKIM, and DMARC, as well as checks against major blacklists. It is operated by Mail-tester.

email deliverabilityspam scoreSPFDKIM
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GET /api/v1/classify?domain=mail-tester.com
{
  "domain": "mail-tester.com",
  "confidence": "high",
  "category": {
    "purpose": "developer_platform",
    "specialization": "Email Deliverability Testing"
  },
  "identity": {
    "headline": "Email deliverability and spam score testing tool",
    "summary": "Mail-tester is a specialized service that helps users analyze the quality of their emails to prevent them from being marked as spam. It provides detailed reports on email authentication protocols like SPF, DKIM, and DMARC, as well as checks against major blacklists.",
    "operator": "Mail-tester",
    "parent_entity": null,
    "topics": [
      "email deliverability",
      "spam score",
      "SPF",
      "DKIM",
      "DMARC",
      "email marketing"
    ]
  },
  "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": "2012-03-12T16:29:10Z",
    "rank": 44239,
    "hosting_provider": "CLOUDFLARENET - Cloudflare, Inc."
  }
}

Hosting

CLOUDFLARENET - Cloudflare, Inc.

Registered

Mar 12, 2012

Last Updated

Mar 6, 2026

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