| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| tsukuba-sci.com | SOA | 3600 | ns1.helena.jp root@tsukuba-sci.com 2022083102 10800 900 604800 3600 | |
| tsukuba-sci.com | NS | 3600 | ns2.helena.jp | |
| tsukuba-sci.com | NS | 3600 | ns1.helena.jp | |
| tsukuba-sci.com | A | 3600 | 133.125.47.25 | |
| tsukuba-sci.com | MX | 3600 | 10 | ms1.helena.jp |
| www.tsukuba-sci.com | A | 489 | 133.125.47.25 |