DNS Lookup
Query DNS records for domains. Supports A, AAAA, MX, CNAME, TXT, NS, SOA, SRV, CAA, PTR.
How DNS Lookup Works
What is DNS?
The Domain Name System (DNS) translates human-readable domain names (like example.com) into IP addresses that computers use to communicate. It works like a phone book for the internet.
When you query a domain, DNS servers respond with records that define how that domain is configured: where its mail goes, which servers host it, and how to verify its identity.
How to Use
- Enter a domain name. URLs are auto-cleaned (https:// and www. are stripped).
- Select a record type to query a specific type, or leave on "All Standard Types" to retrieve A, AAAA, CNAME, MX, NS, TXT, SRV, PTR, SOA, and CAA at once.
- Choose a DNS server to compare results across resolvers, or enter a custom server IP for targeted diagnostics.
- Use the lightbulb icon to load a sample domain for testing.
- Click any record in the results to see its full details and raw data.
Common Record Types
| A | IPv4 address the domain points to |
| AAAA | IPv6 address the domain points to |
| CNAME | Alias that redirects to another domain name |
| MX | Mail servers responsible for receiving email |
| NS | Authoritative name servers for the domain |
| TXT | Text records for verification, SPF, DKIM, and more |
DNS Servers
localhostUses the server's default resolver. Fastest option, results may be cached.
1.1.1.1Cloudflare DNS. Privacy-focused, one of the fastest public resolvers.
8.8.8.8Google Public DNS. Widely used, reliable global infrastructure.
CustomQuery any DNS server by IP address or hostname for targeted diagnostics.
Important Notes
- DNS records have a TTL (Time to Live) that determines how long they are cached. Recent changes may not appear immediately.
- Different DNS servers may return different results due to caching, geographic routing, or split-horizon DNS.
- Some record types (like DNSSEC records) require the authoritative name server for accurate results.
- Private and reserved IP addresses cannot be used as custom DNS servers from this tool.
Privacy & Security: DNS queries run server-side. The DNS server you select only sees this server's request, not your IP address or identity.
Querying DNS records...