RevealTheme logo

DNS Lookup

Look up DNS records (A, AAAA, MX, TXT, NS, CNAME) for any domain. Useful for debugging email, hosting, and SSL setup.

What is DNS?

DNS (Domain Name System) maps human-readable domain names to machine IP addresses. Every time you visit a site, your browser asks DNS servers for the IP address that hosts it. DNS records control more than IP addresses — MX records direct email, TXT records hold verification tokens and SPF, NS records define which DNS provider is authoritative. This tool queries authoritative DNS servers directly for the freshest data.

Frequently asked questions

Why are my DNS changes not visible yet?▼
DNS records are cached at every level (browser, OS, resolver). TTL (time to live) controls how long. Changes can take up to 48 hours to propagate globally.
What's the difference between A and CNAME?▼
A points a name directly to an IP. CNAME points a name to another name (which then resolves to an IP). A is faster; CNAME is more flexible for managed services.
What does an MX record do?▼
Tells email senders where to deliver mail for your domain. Multiple MX records create failover with priority numbers.

Related tools

WHOIS Lookup

Get full WHOIS data for any domain.

SSL Certificate Checker

Check SSL certificate validity, issuer, and expiry.

HTTP Header Analyzer

Inspect HTTP response headers and security signals.

HTTP Status Code Checker

Check status code of any URL — single or bulk.

Redirect Chain Tracer

Follow every hop in a redirect chain.

Mixed Content Checker

Find HTTP resources loaded on HTTPS pages.

Subscribe for updates

We do not sell your email. We do not spam.

© 2026 RevealTheme. All rights reserved.