cityschool.dk is a .dk domain served by 4 nameservers (ns1.nhl-data.dk, ns2.nhl-data.dk, ns3.nhl-data.dk and 1 more). It was registered on 18 November 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.48 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by cityschool-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.nhl-data.dk | — | — | — |
| ns2.nhl-data.dk | — | — | — |
| ns3.nhl-data.dk | — | — | — |
| ns4.nhl-data.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 93.191.156.48 | — | nt38.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| mandrill_verify.JyGM8o0WdBP6Kg9Tniyk-g |
| MS=ms16608494 |
| P-8QsSjre8yG |
| v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:spf.permido.com -all |
| Policy | Record (cityschool.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:spf.permido.com -all |
| Policy | Record (_dmarc.cityschool.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 93.191.156.48 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2024090401 |
| Primary NS (MNAME) | ns1.nhl-data.dk |
| Responsible (RNAME) | hostmaster@nhl-data.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | NHL DATA ApS |
| Registered | 2013-11-18 |
| Expires | 2026-11-30 (40d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 21:46:59 | 1111ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 06:30:49 | 1068ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 00:20:24 | 915ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 23:15:21 | 65535ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:18:45 shown | 1981ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:05:34 | 630ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:01:12 | 694ms | 4 NS 1 A 1 MX | 🔓 Insecure |