DNS Record Lookup
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Hosting & Network
osu.cz runs on AS2852, with email configured.
- Hosting network
- AS2852AS2852
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- Set
Sits alongside 1,442 other sites on AS2852. Stable here since we started watching (Aug 15, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to wanda.osu.cz.
DNS Records for osu.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| osu.cz | SOA | 3600 | oudec.osu.cz hostmaster.osu.cz 2026111639 86400 7200 3600000 3600 | |
| osu.cz | NS | 0 | oudec.osu.cz | |
| osu.cz | NS | 0 | nsa.ces.net | |
| osu.cz | NS | 0 | albert.osu.cz | |
| osu.cz | MX | 0 | 10 | mailer2.osu.cz |
| osu.cz | MX | 0 | 20 | mailer.osu.cz |
| osu.cz | A | 0 | 78.128.128.25 | |
| osu.cz | CAA | 0 | 0 issue harica.gr | |
| osu.cz | CAA | 0 | 0 iodef mailto:abuse@osu.cz | |
| osu.cz | CAA | 0 | 0 issuewild ; | |
| osu.cz | CAA | 0 | 0 contact | |
| osu.cz | CAA | 0 | 0 contact | |
| osu.cz | CAA | 0 | 0 contact | |
| osu.cz | AAAA | 0 | 2001:718:1005:620::25 | |
| osu.cz | TXT | 0 | google-site-verification=CfRE5GRPoR3C2Wo8Ugd58hN_5xCIbOB0Y6JhL3fSRQQ | |
| osu.cz | TXT | 0 | HP/cAbpciB/oOdnxNF5CgU/EAETippN39QRdOp0uDi9QnGmq0tMctik2Cwtd+NIH7O8LksgkDlkp/AI6ThQBYQ== | |
| osu.cz | TXT | 0 | MS=ms99785042 | |
| osu.cz | TXT | 0 | mnWY6HAh2MMNsg65sRcboUMogfjXwWIFDbstI+9enkkfomVzVcUIPS/lpxiclSEL7KyK1liOMC0/9t46Vrel/Q== | |
| osu.cz | TXT | 0 | apple-domain-verification=ZpJFERzeYVPq8a3z | |
| osu.cz | TXT | 0 | v=spf1 a mx ip4:195.113.106.6 ip4:195.113.106.9 ip4:195.113.106.34 ip4:195.113.111.126 ip6:2001:718:1005:601::6 ip6:2001:718:1005:601::9 ip6:2001:718:1005:601::34 include:spf.protection.outlook.com include:spf.reenio.cz -all | |
| www.osu.cz | A | 0 | 78.128.128.25 | |
| www.osu.cz | CNAME | 0 | wanda.osu.cz | |
| www.osu.cz | AAAA | 0 | 2001:718:1005:620::25 | |
| www.osu.cz | TXT | 0 | webserver OU | |
| www.osu.cz | TXT | 0 | v=spf1 a mx ip4:195.113.106.6 ip4:195.113.106.9 ip4:195.113.106.34 ip4:195.113.111.126 ip6:2001:718:1005:601::6 ip6:2001:718:1005:601::9 ip6:2001:718:1005:601::34 include:spf.protection.outlook.com -all |
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain