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
6 answer records · Partialt-systems.cz
NS: resolver returned SERVFAIL. This is a DNS error, not an empty record set.
ANOERRORAD yesEDE(18): Prohibited
AAAANOERROR · no answersAD yes
MXNOERRORAD yes
NSSERVFAILAD noEDE(7): Signature Expired failed to verify t-systems.cz. NS: RRSIG t-systems.cz., expiration = 1792124292
CNAMENOERROR · no answersAD yes
TXTNOERRORAD yes
SOANOERRORAD yes
CAANOERROR · no answersAD yes
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 | t-systems.cz | 3600 | 80.158.66.24 | IP WHOIS → |
| MX | t-systems.cz | 3600 | 10 tsystems-cz0c.mail.protection.outlook.com. | DNS → |
| TXT | t-systems.cz | 3600 | "MS=ms36116194" | — |
| TXT | t-systems.cz | 3600 | "_l04n1zvrlhbbuf53fzeydd1snixc4z1" | — |
| TXT | t-systems.cz | 3600 | "v=spf1 include:spf.protection.outlook.com -all" | — |
| SOA | t-systems.cz | 3600 | ns.t-systems.cz. root.cz.net. 2025114040 3600 7200 1814400 86400 | — |
Authority records · 1
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| SOA | t-systems.cz | 3600 | ns.t-systems.cz. root.cz.net. 2025114093 3600 7200 1814400 86400 | — |
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.