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Query any DNS record with its TTL

harmlessDNSdebian, ubuntu
Adjust the values, the command updates live
user@server
dig example.com A +noall +answer

Prints only the answer section of the DNS query: name, TTL in seconds, type and value. Supported types include A, AAAA, CNAME, TXT, SRV and NS. The TTL shows how long a resolver will keep caching the answer before asking again.

Note: On Debian, dig is in the bind9-dnsutils package (Ubuntu: dnsutils).

Also searched as

  • check a record of a domain
  • which ip does my domain point to
  • how long is a dns record cached

Related one-liners

All in DNS

Check a domain's DKIM key in DNS

$dig +short default._domainkey.example.com TXT
harmlessDNS

Check DNS propagation across public resolvers

$for ns in 1.1.1.1 8.8.8.8 9.9.9.9 208.67.222.222; do echo "$ns: $(dig +short @$ns example.com A | tr '\n' ' ')"; done
harmlessDNS

Check if a server IP is on the Spamhaus blacklist

$dig +short $(echo 203.0.113.10 | awk -F. '{print $4"."$3"."$2"."$1}').zen.spamhaus.org
harmlessDNS

Check the CAA record of a domain

$dig +short example.com CAA
harmlessDNS

Check whether DNSSEC works for a domain

$dig @1.1.1.1 +dnssec example.com SOA | grep -E "flags:|RRSIG|status:"
harmlessDNS

Compare the SOA serial on all nameservers

$for ns in $(dig +short example.com NS); do echo "$ns $(dig +short @$ns example.com SOA | awk '{print $3}')"; done
harmlessDNS

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