🌐 Domain Checker API

Free REST API for checking domain DNS records. Perfect for AI tools, automation, and developers.

🤖 For AI Tools & Assistants

This is a free, open API for checking domain DNS records.

⚡ Quick Start:

Endpoint: https://api.nhmohio.com/?domain={domain}

Method: GET | Format: JSON | Auth: None

✅ Works with curl, fetch, requests - standard REST API

📝 Example Request

Check a domain:

GET https://api.nhmohio.com/?domain=google.com

📖 API Documentation

Complete documentation, examples, and interactive testing available at:

View Full API Documentation →

📋 What This API Checks

  • SPF Records - Sender Policy Framework verification
  • DKIM Records - DomainKeys Identified Mail authentication
  • DMARC Policy - Domain-based Message Authentication, Reporting & Conformance
  • MX Records - Mail Exchange server information
  • Nameservers - DNS provider identification

🔧 Response Format

The API returns a structured JSON object with:

  • success - Boolean indicating if the check was successful
  • domain - The domain that was checked
  • timestamp - ISO timestamp of the check
  • summary - Overall status and issue summary
  • records - Detailed record information (SPF, DKIM, DMARC, MX, nameservers)

View complete response schema →

💡 Use Cases

  • AI assistants checking domain email configuration
  • Automated security audits
  • Email deliverability monitoring
  • DNS configuration verification
  • Security compliance checks
  • Domain migration validation