| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| 21stcenturyclassroom.com | SOA | 21600 | ns1.markmonitor.com hostmaster@markmonitor.com 2021031603 86400 3600 2592000 172800 | |
| 21stcenturyclassroom.com | NS | 6740 | ns4.markmonitor.com | |
| 21stcenturyclassroom.com | NS | 6740 | ns6.markmonitor.com | |
| 21stcenturyclassroom.com | NS | 6740 | ns1.markmonitor.com | |
| 21stcenturyclassroom.com | NS | 6740 | ns5.markmonitor.com | |
| 21stcenturyclassroom.com | NS | 6740 | ns7.markmonitor.com | |
| 21stcenturyclassroom.com | NS | 6740 | ns2.markmonitor.com | |
| 21stcenturyclassroom.com | NS | 6740 | ns3.markmonitor.com |