TLD/gov/dhsについて、ここに記述してください。
$ dnsq a ww.dhs.gov a.gov-servers.net
1 ww.dhs.gov: 173 bytes, 1+0+7+0 records, response, noerror query: 1 ww.dhs.gov authority: dhs.gov 86400 NS eur2.akam.net authority: dhs.gov 86400 NS eur5.akam.net authority: dhs.gov 86400 NS use2.akam.net authority: dhs.gov 86400 NS use5.akam.net authority: dhs.gov 86400 NS usw4.akam.net authority: dhs.gov 86400 NS ns1-46.akam.net authority: dhs.gov 86400 NS ns1-96.akam.net