| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| ctb.us | SOA | 21600 | pdns85.ultradns.com hostmaster@mheducation.com 2014120912 86400 86400 86400 3600 | |
| ctb.us | NS | 21600 | pdns85.ultradns.org | |
| ctb.us | NS | 21600 | pdns85.ultradns.biz | |
| ctb.us | NS | 21600 | pdns85.ultradns.com | |
| ctb.us | NS | 21600 | pdns85.ultradns.net | |
| ctb.us | A | 3600 | 192.243.92.248 | |
| www.ctb.us | A | 300 | 204.74.99.100 | |
| www.ctb.us | CNAME | 3600 | parked.eppg.com |