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DNS Lookup Tool

Lookup DNS records for any domain name. Get detailed information about A, AAAA, CNAME, MX, NS, and TXT records.

DNS Lookup

Enter a domain name and select the record type to lookup

Every domain name resolves to one or more underlying records — IP addresses, mail servers, name servers, and more. The ToolEdge DNS Lookup tool queries authoritative public DNS for the record type of your choice and shows the result instantly, without you needing to install `dig` or `nslookup`. Pick a record type (A for IPv4, AAAA for IPv6, MX for mail, NS for name servers, TXT for verification and SPF, CNAME for aliases) and inspect what the world sees when it tries to reach your domain.

DNS is the source of most "it works on my machine" problems in production. A failed deploy, a non-delivering email, an SSL certificate that refuses to validate — they usually trace back to a missing, stale, or misconfigured DNS record. This tool gives you the same answer the rest of the internet is getting, which is the right starting point for any DNS-related debugging.

Common use cases

  • Confirming a new A or CNAME record has propagated after a DNS change at your registrar.
  • Checking MX records when email to or from a domain is bouncing or being marked as spam.
  • Inspecting TXT records for SPF, DKIM, DMARC, or domain-verification tokens (Google, Microsoft, Stripe).
  • Finding which name servers a domain is using — useful when troubleshooting Cloudflare, Route 53, or registrar-level issues.
  • Verifying AAAA records when rolling out IPv6 support to your service.

Frequently asked questions

A records map a hostname to an IPv4 address (e.g., 93.184.216.34). AAAA records ("quad-A") map a hostname to an IPv6 address (e.g., 2606:2800:220:1:248:1893:25c8:1946). Modern clients prefer AAAA when available and fall back to A. You can publish both; that is how dual-stack setups work.