DNS Lookup Online lets you query the most common DNS record types for any domain and see results per resolver. Use it to confirm A and AAAA addresses, verify MX routing, validate TXT values for SPF/DMARC/DKIM, and check delegation with NS and SOA. The per‑resolver view is useful when diagnosing propagation, caching issues, or inconsistent answers across public DNS providers.
Enter a domain, choose a record type, and run the lookup. You can compare answers quickly, spot missing records, and validate changes without digging into multiple tools. It is equally useful for troubleshooting outages and for routine checks during migrations or onboarding new services.
If you want a guided check, use the focused workflows below. They combine multiple record types and present results in a single view.
Learn how A records, MX priorities, SPF, and DMARC actually work in our comprehensive, easy-to-read DNS documentation.
Yes, DNS Lookup Online is completely free to use. You can run unlimited queries for any DNS record type, check email configurations, and validate SSL/PKI setups without creating an account.
We query major global public DNS resolvers, including Google DNS (8.8.8.8) and Cloudflare (1.1.1.1). This allows you to compare results across different networks and accurately track global DNS propagation.
We perform real-time DNS queries directly to public resolvers. For specific details on data retention and privacy, please refer to our Privacy Policy linked in the footer.