| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| 4check.cz | SOA | 900 | ns.web4u.cz admin@web4u.cz 2017082101 10800 3600 1209600 14400 | |
| 4check.cz | NS | 900 | ns.web4u.cz | |
| 4check.cz | NS | 900 | ns2.web4u.cz | |
| 4check.cz | A | 900 | 81.91.86.14 | |
| 4check.cz | AAAA | 900 | 2001:1568::14 | |
| 4check.cz | MX | 900 | 10 | mx.web4u.cz |
| www.4check.cz | A | 900 | 81.91.86.14 | |
| www.4check.cz | AAAA | 900 | 2001:1568::14 |