Free Online DNS Lookup Tool - Check Domain DNS Records

DNS Lookup is an essential tool for webmasters, system administrators, and developers. Our free service allows you to quickly check all DNS records of any domain, including A, AAAA, MX, TXT, NS, CNAME, SOA, and other record types. The tool works in real-time and provides current information directly from DNS servers.

Why Check DNS Records?

DNS (Domain Name System) is the "phone book of the internet" that translates domain names into IP addresses. Checking DNS records is necessary in the following situations:

• Website troubleshooting - if a site doesn't load, DNS check helps identify resolution issues
• Email setup - checking MX records is crucial for proper mail server configuration
• Email security - verify SPF, DKIM, and DMARC records (TXT) to protect against spam
• Site migration - confirm DNS records updated after moving to new hosting
• CDN setup - check CNAME records when connecting a Content Delivery Network

DNS Record Types

• A record - links domain name to IPv4 address
• AAAA record - links domain to IPv6 address
• CNAME record - creates an alias for another domain
• MX record - specifies mail servers
• TXT record - text information (SPF, DKIM)
• NS record - authoritative name servers