Domain Health Monitor - Free Tool

Interactive intelligence tool

Run the check, then ship the workflow

Use the browser tool for a fast answer, then move the same logic into scripts, monitoring, or product flows when it becomes repeatable.

1

Start with the live form

Enter a domain, URL, IP, email, or record and get a focused result without setup.

2

Review decision-ready signals

Outputs highlight statuses, risks, records, and next actions instead of raw provider noise.

3

Automate the winning workflow

Use the request and response examples to turn a one-off check into an API call or recipe.

What this tool helps you decide

Each page is shaped around a practical operational question, not just a raw lookup.

Signal

See the current DNS, registration, security, pricing, or reputation evidence.

Context

Compare the result with related checks so the next move is easier to trust.

Action

Copy examples, open linked tools, or move into API documentation when you need scale.

Trust signals before you integrate

Transparent docs, authenticated requests, and visible reliability details make it easier to evaluate DomScan before you ship.

Uptime API artifacts

OpenAPI, Swagger, Postman, CLI, SDK, and MCP links are one click away.

API keys Protected access

Authenticated endpoints use API keys with clear credit costs before you call them.

Free allowance Sign Up for Free

Start with 10,000 monthly credits and upgrade only when usage grows.

Active Example Request

Start from the curl and HTTP samples, then map the parameters into your application code.

Key Features

Domain Health Monitor

We perform 15+ checks across categories: HTTP/HTTPS connectivity and redirect chains, SSL certificate validity and expiration, DNS configuration (A, MX, NS records), email authentication (SPF, DKIM, DMARC), security headers (HSTS, CSP, X-Frame-Options), response times, and DNSSEC validation. Each check contributes to a weighted health score from 0-100.

Health Score

Grade A (90-100): Excellent configuration with all security best practices. Grade B (80-89): Good configuration with minor improvements possible. Grade C (70-79): Acceptable but missing important security features. Grade D (60-69): Needs attention - potential deliverability or security issues. Grade F (below 60): Critical issues requiring immediate action.

Check Domain Health

Focus on failing checks first: install valid SSL from our SSL checker, configure email authentication using DNS records (SPF, DKIM, DMARC), add security headers to your web server, enable DNSSEC with your registrar, and ensure fast response times. Our detailed report shows exactly what to fix with remediation steps.

Example Request

Example Request http

GET /v1/health?domain=example.com

Example Response

Example Response json

{
  "health_score": 88,
  "grade": "B",
  "warnings": ["Missing SPF record"]
}

Built from the same API surface

The browser experience previews DomScan's structured endpoints, so teams can validate a use case before writing code.

Open API docs All Tools

Frequently Asked Questions

What does the domain health check measure?

We perform 15+ checks across categories: HTTP/HTTPS connectivity and redirect chains, SSL certificate validity and expiration, DNS configuration (A, MX, NS records), email authentication (SPF, DKIM, DMARC), security headers (HSTS, CSP, X-Frame-Options), response times, and DNSSEC validation. Each check contributes to a weighted health score from 0-100.

What's a good health score and what do the grades mean?

Grade A (90-100): Excellent configuration with all security best practices. Grade B (80-89): Good configuration with minor improvements possible. Grade C (70-79): Acceptable but missing important security features. Grade D (60-69): Needs attention - potential deliverability or security issues. Grade F (below 60): Critical issues requiring immediate action.

How can I improve my domain's health score?

Focus on failing checks first: install valid SSL from our SSL checker, configure email authentication using DNS records (SPF, DKIM, DMARC), add security headers to your web server, enable DNSSEC with your registrar, and ensure fast response times. Our detailed report shows exactly what to fix with remediation steps.

Why is email authentication important for domain health?

Email authentication (SPF, DKIM, DMARC) prevents email spoofing and improves deliverability. Without proper authentication, emails from your domain may be marked as spam or rejected. Our health check verifies these records are correctly configured. Use our DNS lookup tool to inspect your current email authentication records.

Can I monitor multiple domains automatically?

Yes! Use GET /v1/health?domain=example.com for single checks or POST /v1/health/bulk for batch analysis. Add domains to your watchlist for automated monitoring with alerts. Perfect for agencies managing multiple client domains, IT teams, and MSPs needing regular compliance audits.

💙 Domain Health Checker