cityschool.dk

📜 Historical scan 2026-06-16 23:15:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

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.

🖥️ Nameservers#

4 records 4531ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nhl-data.dk	—	—	—
ns2.nhl-data.dk	—	—	—
ns3.nhl-data.dk	—	—	—
ns4.nhl-data.dk	—	—	—

🌍 A Records#

1 records 7671ms

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	—

📧 MX Records#

1 records 4141ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	cityschool-dk.mail.protection.outlook.com	52.101.68.25 52.101.73.15 52.101.73.16 52.101.73.26	mail-db8pr02cu00101.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 13881ms

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

✉️ SPF#

Policy	Record (cityschool.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:spf.permido.com -all

📨 DMARC#

Policy	Record (_dmarc.cityschool.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 21:46:59

www	93.191.156.48 (AS48854) (address records, no CNAME)
www vs bare domain	Same network cityschool.dk: 93.191.156.48 (AS48854) www.cityschool.dk: 93.191.156.48 (AS48854)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

11839ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

7691ms

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

📋 Registration#

WHOIS fetched 2026-10-08 05:17:21

Field	Value
Registrar	NHL DATA ApS
Registered	2013-11-18
Expires	2026-11-30 (38d)

📋 WHOIS#

⏱️ Lookup Timing#

4531ms

7671ms

4141ms

AAAA

5137ms

TXT

13881ms

CAA

6210ms

HTTPS

1841ms

TLSA

9583ms

SOA

7691ms

MTA-STS

3223ms

DNSSEC

11839ms

SRV

0ms

Total

65535ms

🕐 Scan History#

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 shown	65535ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-16 21:18:45	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