| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| domain21.com | SOA | 864 | ns.domain21.com sysop@domain21.com 2021061601 3600 900 604800 180 | |
| domain21.com | NS | 864 | ns2.domain21.com | |
| domain21.com | NS | 864 | ns3.domain21.com | |
| domain21.com | NS | 864 | ns.domain21.com | |
| domain21.com | NS | 864 | ns4.domain21.com |