DNS Lookup
Query DNS records including A, AAAA, MX, TXT, CNAME, and NS records for any domain with detailed propagation status.
About DNS Records
How to Use DNS Lookup
- Enter the domain name you want to look up (e.g., example.com)
- Select the DNS record types to query (A, AAAA, MX, NS, TXT, CNAME, SOA)
- Click "Lookup" to retrieve the DNS records
- Review the results showing IP addresses, mail servers, nameservers, and other DNS data
- Use the copy button to save specific records
About DNS Lookup
DNS (Domain Name System) is the internet's phone book, translating human-readable domain names into IP addresses that computers use to communicate. Our DNS Lookup tool provides comprehensive visibility into any domain's DNS configuration, essential for troubleshooting, verification, and security analysis.
Understanding DNS Record Types
Each DNS record type serves a specific purpose in directing internet traffic:
- A Records: Map domain names to IPv4 addresses—the most fundamental DNS record
- AAAA Records: The IPv6 equivalent of A records for modern internet infrastructure
- MX Records: Direct email to the correct mail servers with priority ordering
- CNAME Records: Create aliases pointing one domain to another
- TXT Records: Store verification data for email authentication (SPF, DKIM, DMARC) and domain ownership
- NS Records: Identify the authoritative name servers for the domain
- SOA Records: Contain administrative information including refresh intervals and serial numbers
When DNS Lookup Is Essential
After making DNS changes, propagation can take 24-48 hours. Our tool helps verify whether changes have taken effect globally. Email deliverability issues often stem from misconfigured MX or TXT records—checking these can resolve why messages aren't arriving. When migrating to new hosting, DNS lookup confirms traffic is routing correctly.
Security and Verification Uses
Security teams use DNS lookup to verify SPF, DKIM, and DMARC records that protect against email spoofing. Domain verification for services like Google Workspace or Microsoft 365 requires adding specific TXT records that our tool can confirm. Investigating suspicious domains often starts with DNS analysis to understand the infrastructure behind a website.