DNS Lookup - 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

DNS Records

Our tool supports all common DNS record types including A (IPv4 addresses), AAAA (IPv6 addresses), MX (mail servers with priority), NS (authoritative nameservers), TXT (text records for SPF/DKIM/DMARC), SOA (start of authority with serial numbers), CNAME (canonical name aliases), and CAA (certificate authority authorization for SSL).

Lookup DNS

DNS (Domain Name System) translates human-readable domain names into IP addresses. Our tool uses Cloudflare DNS-over-HTTPS to query authoritative DNS servers, retrieving current records with DNSSEC validation. Results show the exact configuration including TTL (time to live) values.

SSL Certificates

DNS records are critical for security: TXT records authenticate your emails via SPF, DKIM, and DMARC preventing spoofing. CAA records restrict which certificate authorities can issue SSL certificates. DNSSEC validates that DNS responses have not been tampered with. Use our email security checker to audit your email authentication setup.

Example Request

Example Request http

GET /v1/dns/all?domain=example.com

Example Response

Example Response json

{
  "a": ["93.184.216.34"],
  "mx": [{ "exchange": "mail.example.com", "priority": 10 }]
}

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 DNS record types can I look up?

Our tool supports all common DNS record types including A (IPv4 addresses), AAAA (IPv6 addresses), MX (mail servers with priority), NS (authoritative nameservers), TXT (text records for SPF/DKIM/DMARC), SOA (start of authority with serial numbers), CNAME (canonical name aliases), and CAA (certificate authority authorization for SSL).

How does DNS lookup work?

DNS (Domain Name System) translates human-readable domain names into IP addresses. Our tool uses Cloudflare DNS-over-HTTPS to query authoritative DNS servers, retrieving current records with DNSSEC validation. Results show the exact configuration including TTL (time to live) values.

Why are DNS records important for website security?

DNS records are critical for security: TXT records authenticate your emails via SPF, DKIM, and DMARC preventing spoofing. CAA records restrict which certificate authorities can issue SSL certificates. DNSSEC validates that DNS responses have not been tampered with. Use our email security checker to audit your email authentication setup.

How can I check if DNS changes have propagated?

DNS changes can take up to 48 hours to propagate globally due to TTL caching. Use our DNS propagation checker to verify your records across multiple global nameservers. This helps confirm changes are live worldwide before updating production systems.

Can I use this for programmatic DNS queries?

Yes! Our REST API provides programmatic DNS access. Use GET /v1/dns/all for all records, GET /v1/dns?type=MX for specific types, or GET /v1/dns/security for a complete security audit including DNSSEC and email authentication. Perfect for monitoring tools and CI/CD pipelines.

🔌 DNS Lookup