DNS Lookup Tool

Query DNS records for any domain - A, MX, TXT, NS, CNAME, SOA and more

What is DNS Lookup?

DNS Lookup is a network diagnostic tool that queries Domain Name System (DNS) servers to retrieve all DNS records associated with a domain name. It helps you verify DNS configuration, troubleshoot DNS propagation issues, and inspect email routing (MX records), domain ownership verification (TXT records), and more.

Common Use Cases

  • •Verify DNS Changes: Check if your recent DNS updates have propagated globally
  • •Email Configuration: View MX records to troubleshoot email delivery issues
  • •Domain Verification: Check TXT records for domain ownership validation (SPF, DKIM, DMARC)
  • •Find Nameservers: Identify which DNS servers are authoritative for a domain

How to Use

  1. 1.Enter a domain name (e.g., google.com)
  2. 2.Click "DNS Lookup" or press Enter
  3. 3.View all DNS records organized by type (A, MX, TXT, etc.)

Example Queries

google.com→Returns A records (IP addresses), MX records (mail servers), and more
github.com→Check nameservers, IP addresses, and email configuration

Common Use Cases

Verify DNS propagation after records are updated.
Audit MX and TXT records for email deliverability setup.
Confirm nameserver and CNAME configuration during migrations.
Troubleshoot domain resolution issues quickly.

Frequently Asked Questions

How long does DNS propagation usually take?

Propagation commonly takes minutes to 48 hours depending on TTL values, resolver caching, and provider behavior.

Which DNS records should I check first?

Start with A/AAAA for hosting, MX for email routing, TXT for SPF/DKIM/verification, and NS for delegation.

Can DNS records affect SEO and uptime?

Yes. Incorrect DNS can cause downtime, crawl failures, and mail delivery issues that impact search performance and operations.

Related Tools

WHOIS Lookup

Cross-check registrar and nameserver ownership details.

SSL Checker

Confirm certificate setup after DNS changes.

Redirect Checker

Validate HTTP routing once DNS resolves correctly.

Last updated: March 10, 2026Built by y4yes Tools Team

Results are generated in real-time. For best accuracy, verify critical issues manually.