THE RECORDS BEHIND THE NAME
DNS lookup.
Explore resource records, mail routing and reverse DNS.
Public IPs automatically use PTR. Common records queries A, AAAA, MX, NS, CNAME, TXT, SOA and CAA separately.
Querying DNS records…
DNS
20 answer recordsosu.cz
ANOERRORAD yesEDE(18): Prohibited
AAAANOERRORAD yesEDE(18): Prohibited
MXNOERRORAD yesEDE(18): Prohibited
NSNOERRORAD yesEDE(18): Prohibited
CNAMENOERROR · no answersAD yes
TXTNOERRORAD yesEDE(18): Prohibited
SOANOERRORAD yesEDE(18): Prohibited
CAANOERRORAD yesEDE(18): Prohibited
AD indicates that the resolver reports DNSSEC-validated data. “AD no” can also mean the zone is unsigned. NXDOMAIN is a DNS result, not a domain-availability check.
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| A | osu.cz | 3600 | 78.128.128.25 | IP WHOIS → |
| AAAA | osu.cz | 3600 | 2001:718:1005:620::25 | IP WHOIS → |
| MX | osu.cz | 3600 | 10 mailer2.osu.cz. | DNS → |
| MX | osu.cz | 3600 | 20 mailer.osu.cz. | DNS → |
| NS | osu.cz | 3600 | nsa.ces.net. | DNS → |
| NS | osu.cz | 3600 | oudec.osu.cz. | DNS → |
| NS | osu.cz | 3600 | albert.osu.cz. | DNS → |
| TXT | osu.cz | 3600 | "MS=ms99785042" | — |
| TXT | osu.cz | 3600 | "apple-domain-verification=ZpJFERzeYVPq8a3z" | — |
| TXT | osu.cz | 3600 | "google-site-verification=CfRE5GRPoR3C2Wo8Ugd58hN_5xCIbOB0Y6JhL3fSRQQ" | — |
| TXT | osu.cz | 3600 | "HP/cAbpciB/oOdnxNF5CgU/EAETippN39QRdOp0uDi9QnGmq0tMctik2Cwtd+NIH7O8LksgkDlkp/AI6ThQBYQ==" | — |
| TXT | osu.cz | 3600 | "mnWY6HAh2MMNsg65sRcboUMogfjXwWIFDbstI+9enkkfomVzVcUIPS/lpxiclSEL7KyK1liOMC0/9t46Vrel/Q==" | — |
| TXT | osu.cz | 3600 | "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" | — |
| SOA | osu.cz | 3600 | oudec.osu.cz. hostmaster.osu.cz. 2026093747 86400 7200 3600000 3600 | — |
| CAA | osu.cz | 3600 | 0 iodef "mailto:abuse@osu.cz" | — |
| CAA | osu.cz | 3600 | 0 issue "harica.gr" | — |
| CAA | osu.cz | 3600 | 0 issuemail "harica.gr" | — |
| CAA | osu.cz | 3600 | 0 issuemail "ica.cz" | — |
| CAA | osu.cz | 3600 | 0 issuemail "postsignum.cz" | — |
| CAA | osu.cz | 3600 | 0 issuewild ";" | — |
Authority records · 1
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| SOA | osu.cz | 3600 | oudec.osu.cz. hostmaster.osu.cz. 2026093747 86400 7200 3600000 3600 | — |
Results reflect the public DNS view and recursive caching; they may differ from your local network. TXT strings retain their DNS quoting. Common records does not enumerate every name or record in a zone.