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DNS record lookup

Look up a domain's A, MX, TXT, NS and other records, or reverse DNS for an IP.

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How it works

DNS (the internet's address book) stores records for every domain. We ask our DNS resolver for the A, AAAA, MX, TXT, CNAME, NS and SOA records of the name you enter, and show them exactly as published, grouped by type.

For email, three kinds matter most. MX records name the servers that receive mail for the domain; senders try the lowest number first. A TXT record starting v=spf1 is the SPF record, which lists the servers allowed to send for the domain. DMARC and DKIM live at their own names, such as _dmarc.example.com, so look those up directly.

Long TXT records are often split into several quoted strings of up to 255 characters. Receivers join them back together. We show the strings as published, so you can see how your DNS host split them.

Enter an IP address to see its reverse DNS (PTR) record, and whether that name points back to the same IP. Receiving servers trust mail more when it does.