DNS Lookup
Look up DNS records for any domain. Query A, AAAA, MX, TXT, NS, CNAME, and SOA records to understand domain configuration.
DNS Lookup
DNS Record Types
A / AAAA
Address records that map domain names to IP addresses
MX
Mail exchange records specifying email servers
TXT
Text records for verification and email authentication
NS
Nameserver records indicating authoritative DNS servers
Common Use Cases
- Verify domain ownership and configuration
- Troubleshoot email delivery issues (MX records)
- Check SPF, DKIM, and DMARC settings (TXT records)
- Find a website's IP address
- Identify hosting providers and CDNs
- Debug DNS propagation after changes
Frequently Asked Questions
What is a DNS lookup?
A DNS lookup queries the Domain Name System to retrieve information about a domain, such as its IP addresses (A/AAAA records), mail servers (MX records), or other DNS records like TXT and NS.
What are the different DNS record types?
A records map to IPv4 addresses, AAAA to IPv6, MX specifies mail servers, TXT contains text data (often for verification), NS lists nameservers, CNAME creates aliases, and SOA contains administrative information.
Why would I check MX records?
MX records tell you which servers handle email for a domain. This is useful for troubleshooting email delivery issues, verifying email configuration, or understanding a domain's email infrastructure.
What are TXT records used for?
TXT records store text data and are commonly used for domain verification (Google, Microsoft), SPF email authentication, DKIM signatures, and DMARC policies.