DNS Lookup Tool

What do these record types mean?

• A - maps a domain to an IPv4 address.
• AAAA - maps a domain to an IPv6 address.
• CNAME - points a domain to another domain name instead of an IP directly.
• MX - specifies which mail servers handle email for the domain.
• TXT - arbitrary text, commonly used for domain verification and email authentication (SPF, DKIM, DMARC).
• NS - lists the authoritative nameservers for the domain.

Want to check what IP a domain actually resolves to versus what you expect? Also try our IP Geolocation Lookup.

About the reachability check

This compares a global DNS lookup against a live connection attempt from your own browser, on your current network. It's a useful signal, not a definitive diagnosis - a mismatch can mean the site is blocked or filtered on your network (by an ISP, a firewall, or parental controls), but it can also be caused by an ad blocker, a browser extension, or a temporary network issue. It also only tests HTTPS reachability, not DNS specifically.

Read more: A, MX, TXT, NS: What All Your DNS Records Actually Do.