cityschool.dk DNS records

🖥️ Nameservers4 records 51ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nhl-data.dk	185.136.96.11 2a06:fb00:1::1:11	ns1.nhl-data.dk ns1.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
ns2.nhl-data.dk	185.136.97.11 2a06:fb00:1::2:11	ns2.nhl-data.dk ns2.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
ns3.nhl-data.dk	185.136.98.11 2a06:fb00:1::3:11	ns3.nhl-data.dk ns3.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
ns4.nhl-data.dk	185.136.99.11 2a06:fb00:1::4:11	ns4.nhl-data.dk ns4.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd

🌍 A Records1 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.48	3600s	nt38.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	cityschool-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::6 2a01:111:f403:ca09::9 2a01:111:f403:ca09::c 52.101.68.18 52.101.68.29 52.101.73.2 52.101.73.28	mail-db7pr03cu00507.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 207ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC113ms

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

🏷️ SOA48ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

51ms

A

56ms

MX

49ms

AAAA

59ms

TXT

207ms

CAA

47ms

HTTPS

49ms

TLSA

115ms

SOA

48ms

MTA-STS

76ms

DNSSEC

113ms

SRV

78ms

Total

915ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-02 00:20:24	915ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 23:15:21	65535ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 21:18:45	1981ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 21:05:34	630ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 21:01:12	694ms	4 NS 1 A 1 MX	🔓 Insecure	View