Growth

DNS Checker

See what public resolvers return for a domain. This is a first-party lookup from 8om — not a 20-city propagation map.

0 / 5 site reports today (each report crawls up to 20 pages).

Run the check

Public resolvers from this server — not a worldwide propagation map.

Learn

Not dnschecker.org

We do not run probes in 20 cities. Results are from 8om plus three public resolvers.

Reasons

Why use this

Core record types

A, AAAA, CNAME, MX, NS, TXT, SOA, CAA.

Three resolvers

Cloudflare, Google, and Quad9, compared for A-record agreement.

SSRF-safe

Private hosts and loopback addresses are blocked.

Steps

How it works

  1. Enter a domain

    example.com or a full URL.

  2. We query

    Three public resolvers from this server.

  3. Compare

    Use MX/NS before changing hosts.

Examples

Use cases

  • Before a DNS cutover
  • MX troubleshooting
  • CAA / SPF checks
Quality

Best practices

  • Check both apex and www if you use both.
Next

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Help

FAQ

Why do resolvers disagree?

Propagation, anycast, or geo-DNS. Wait for TTL, then re-check.

Keep going with 8om

Start free for more quota, or open another tool in the same workspace.

Start Free Explore other tools