| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| 21a.ru | SOA | 600 | ns1.centre.ru support@centre.ru 2011080678 86400 7200 2592000 86400 | |
| 21a.ru | NS | 600 | ns1.centre.ru | |
| 21a.ru | NS | 600 | ns2.centre.ru | |
| 21a.ru | A | 600 | 194.186.45.229 | |
| 21a.ru | MX | 600 | 10 | mx2.centre.ru |
| 21a.ru | MX | 600 | 12 | mx2v1.centre.ru |
| 21a.ru | MX | 600 | 11 | mx4.centre.ru |
| www.21a.ru | A | 600 | 194.186.45.229 | |
| www.21a.ru | CNAME | 600 | ms2.centre.ru |