nu1905.dk

📜 Historical scan 2026-09-16 13:55:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nu1905.dk is a .dk domain served by 3 nameservers (ns1.nordicnumber.com, ns2.nordicnumber.com, ns3.nordicnumber.com). It was registered on 3 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.198.138.10 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mxgw1.nordicnumber.com, mxgw2.nordicnumber.com. The zone is not DNSSEC-signed, has no 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#

3 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nordicnumber.com	91.198.138.46	—	AS51167 Contabo GmbH
ns2.nordicnumber.com	91.198.138.47	—	AS51167 Contabo GmbH
ns3.nordicnumber.com	213.136.93.70	ns3.nnhosting.eu	AS51167 Contabo GmbH

🌍 A Records#

1 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.198.138.10	900s	—	AS51167	Contabo GmbH	91.198.138.0/24	🇫🇷 France	Lauterbourg

📧 MX Records#

2 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mxgw1.nordicnumber.com	91.198.138.54 91.198.138.54	mail.nnhosting.eu pop.nnhosting.eu	AS51167 Contabo GmbH AS51167 Contabo GmbH
20	3600s	mxgw2.nordicnumber.com	91.198.138.54 91.198.138.54	mail.nnhosting.eu pop.nnhosting.eu	AS51167 Contabo GmbH AS51167 Contabo GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	maildiscover.nordicnumber.com → 91.198.138.55

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 316ms

TXT Record
Hosted by Nordic Number Hosting - http://www.nordicnumber.com/
v=spf1 a mx ptr include:spf.nordicnumber.com -all

✉️ SPF#

Policy	Record (nu1905.dk)
-all (hard fail)	v=spf1 a mx ptr include:spf.nordicnumber.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-09 06:09:16

www CNAME	nu1905.dk (all on nu1905.dk) → 91.198.138.10 (AS51167)
www vs bare domain	Same network nu1905.dk: 91.198.138.10 (AS51167) www.nu1905.dk: 91.198.138.10 (AS51167)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2058ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2021030307
Primary NS (MNAME)	ns1.nordicnumber.com
Responsible (RNAME)	hostmaster@nordicnumber.com
Refresh	3600s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-10 21:14:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-03-03
Expires	2027-03-31 (162d)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

48ms

51ms

AAAA

53ms

TXT

316ms

CAA

50ms

HTTPS

49ms

TLSA

105ms

SOA

0ms

MTA-STS

75ms

DNSSEC

2058ms

SRV

948ms

Total

2533ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 06:09:16	3106ms	3 NS 1 A 2 MX	🔓 Insecure
2026-09-25 03:13:32	2530ms	3 NS 1 A 2 MX	🔓 Insecure
2026-09-16 13:55:59 shown	2533ms	3 NS 1 A 2 MX	🔓 Insecure
2026-08-25 03:56:58	19689ms	3 NS 1 A 2 MX	🔓 Insecure
2026-07-22 19:25:10	1230ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-25 13:10:41	1727ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-22 09:16:46	1682ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-21 04:19:52	999ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 08:12:39	996ms	3 NS 1 A 2 MX	🔓 Insecure