nsdn.dk

📜 Historical scan 2026-06-25 12:59:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nsdn.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 already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.206.180.167 is hosted by Public Cloud Ltd. (AS205787) in Germany. Mail is handled by nsdn-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 184ms

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 Records#

2 records 189ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.206.180.167	3600s	42.http-proxy2.cloudns.net	AS205787	Public Cloud Ltd.	185.206.180.0/22	🇩🇪 Germany	—
185.206.180.185	3600s	185.http4.cloudns.net	AS205787	Public Cloud Ltd.	185.206.180.0/22	🇩🇪 Germany	—

📧 MX Records#

1 records 199ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	nsdn-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::2 2a01:111:f403:ca09::c 2a01:111:f403:ca09::d 52.101.68.39 52.101.73.16 52.101.73.2 52.101.73.28	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as2pr05cu00100.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 → 40.99.204.72

🔷 AAAA Records (IPv6)#

2 records 180ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a0b:1640:1:1:1013:1:1:1	3600s	185.http4.cloudns.net	AS205787	Public Cloud Ltd.	2a0b:1640:1:0:0:0:0:0/48	🇧🇬 Bulgaria	—
2a0b:1640:1:1:1:1:1783:3454	3600s	http-proxy2.cloudns.net	AS205787	Public Cloud Ltd.	2a0b:1640:1:0:0:0:0:0/48	🇧🇬 Bulgaria	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 251ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 501ms

TXT Record
mscid=TveXb0zTQIlZEQtLGh0RHVO06KPjHkpRcd9OV3k4csDj8e1E9FUucvOrjdHE1QPc8PjYSDY9JyxsHAOfK5qxGw==
v=spf1 ip4:46.183.138.100 include:spf.protection.outlook.com include:sendgrid.net include:spf.dandomain.dk -all

✉️ SPF#

Policy	Record (nsdn.dk)
-all (hard fail)	v=spf1 ip4:46.183.138.100 include:spf.protection.outlook.com include:sendgrid.net include:spf.dandomain.dk -all

📨 DMARC#

Policy	Record (_dmarc.nsdn.dk)
p=reject	v=DMARC1; p=reject;

📬 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 17:06:10

www	185.206.180.167 185.206.180.185 2a0b:1640:1:1:1013:1:1:1 2a0b:1640:1:1:1:1:1783:3454 (AS205787) (address records, no CNAME)
www vs bare domain	Same network nsdn.dk: 185.206.180.167 185.206.180.185 2a0b:1640:1:1:1013:1:1:1 2a0b:1640:1:1:1:1:1783:3454 (AS205787) www.nsdn.dk: 185.206.180.167 185.206.180.185 2a0b:1640:1:1:1013:1:1:1 2a0b:1640:1:1:1:1:1783:3454 (AS205787)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u1787805.wl056.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u1787805.wl056.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-nsdn-dk._domainkey.nsdndk.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

428ms

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

🏷️ SOA#

198ms

Field	Value
Serial	2026030602
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

184ms

189ms

199ms

AAAA

180ms

TXT

501ms

CAA

197ms

HTTPS

261ms

TLSA

483ms

SOA

198ms

MTA-STS

196ms

DNSSEC

428ms

SRV

251ms

Total

3485ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 17:06:10	1080ms	4 NS 2 A 1 MX	🔓 Insecure
2026-09-09 14:34:53	2762ms	4 NS 2 A 1 MX	🔓 Insecure
2026-08-26 16:11:15	3170ms	4 NS 2 A 1 MX	🔓 Insecure
2026-06-27 07:57:15	2024ms	4 NS 2 A 1 MX	🔓 Insecure
2026-06-27 04:36:10	1161ms	4 NS 2 A 1 MX	🔓 Insecure
2026-06-25 12:59:16 shown	3485ms	4 NS 2 A 1 MX	🔓 Insecure
2026-06-24 11:30:13	948ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 08:16:24	3135ms	4 NS 2 A 1 MX	🔓 Insecure