nefstrøm.dk xn--nefstrm-v1a.dk

📜 Historical scan 2026-09-29 21:52:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nefstrøm.dk is a .dk domain served by 2 nameservers (fattouche.ns.cloudflare.com, kayleigh.ns.cloudflare.com). It was registered on 9 November 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.40.238 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. 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#

2 records 24ms

Nameserver	IP addresses	PTR	ASN / ISP
fattouche.ns.cloudflare.com	108.162.195.48 162.159.44.48 172.64.35.48 2606:4700:58::a29f:2c30 2803:f800:50::6ca2:c330 2a06:98c1:50::ac40:2330	fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com fattouche.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kayleigh.ns.cloudflare.com	108.162.194.92 162.159.38.92 172.64.34.92 2606:4700:50::a29f:265c 2803:f800:50::6ca2:c25c 2a06:98c1:50::ac40:225c	kayleigh.ns.cloudflare.com kayleigh.ns.cloudflare.com kayleigh.ns.cloudflare.com kayleigh.ns.cloudflare.com kayleigh.ns.cloudflare.com kayleigh.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.40.238	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.140.49	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	300s	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	300s	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	300s	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:8c31	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:28ee	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.40.238,172.67.140.49 ech=AEX+DQBBVAAgACCYaEk5fchu1YXXkg45WmJCudxxajgUL6N7HV1VnKDVcgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:8c31,2606:4700:3034::6815:28ee

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.nefstrøm.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 2026-10-12 04:42:29

www	104.21.40.238 172.67.140.49 2606:4700:3031::ac43:8c31 2606:4700:3034::6815:28ee (AS13335) (address records, no CNAME)
www vs bare domain	Same network nefstrøm.dk: 104.21.40.238 172.67.140.49 2606:4700:3031::ac43:8c31 2606:4700:3034::6815:28ee (AS13335) www.nefstrøm.dk: 104.21.40.238 172.67.140.49 2606:4700:3031::ac43:8c31 2606:4700:3034::6815:28ee (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.nefstrøm.dk	1bcG_0yqyQNw6EwM3CYahKeG6DVeyobtF9AsUT_UXyM
TXT	_acme-challenge.nefstrøm.dk	cFpJic3BmcqLsnQn-ikGvMA7BAMZ5FtT1tmeaR8PSJc

🔗 TLSA / DANE#

4 records 106ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	24F573980561755185B794745411B05D…

🔐 DNSSEC#

90ms

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	2416175963
Primary NS (MNAME)	fattouche.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 10:10:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-11-09
Expires	2026-11-30 (40d)

🔗 Same registrant#

11 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
el-business.dk	Punktum dk A/S (direct)
el-cirkus.dk	Punktum dk A/S (direct)
energilog.dk	Punktum dk A/S (direct)
fondendinmontør.dk	Punktum dk A/S (direct)
ideelle.dk	Punktum dk A/S (direct)
nef.dk	Punktum dk A/S (direct)
neffiber.dk	Punktum dk A/S (direct)
nefnet.dk	Punktum dk A/S (direct)
nefstroem.dk	Punktum dk A/S (direct)
ravdex.dk	Punktum dk A/S (direct)
stromtilalle.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

24ms

41ms

39ms

AAAA

40ms

TXT

180ms

CAA

44ms

HTTPS

43ms

TLSA

106ms

SOA

0ms

MTA-STS

58ms

DNSSEC

90ms

SRV

70ms

Total

679ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 22:00:07	1106ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-29 21:52:00 shown	679ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-27 07:39:39	668ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-15 19:55:57	1410ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-28 08:34:45	819ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-23 09:03:14	1300ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-09 16:05:46	1401ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-28 09:10:39	1049ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-24 14:22:42	1139ms	2 NS 2 A 4 MX	❓ Unknown
2026-06-20 02:50:41	597ms	2 NS 2 A 4 MX	🔒 Secure
2026-06-19 06:39:45	381ms	0 NS 0 A 0 MX	🔒 Secure
2026-06-18 03:16:02	1161ms	2 NS 2 A 4 MX	🔒 Secure
2026-06-18 02:52:16	890ms	2 NS 2 A 4 MX	🔒 Secure