stuk.dk

📜 Historical scan 2026-10-12 04:39:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

stuk.dk is a .dk domain served by 2 nameservers (meiling.ns.cloudflare.com, sullivan.ns.cloudflare.com). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.68.117 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by stuk-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
meiling.ns.cloudflare.com	108.162.194.254 162.159.38.254 172.64.34.254 2606:4700:50::a29f:26fe 2803:f800:50::6ca2:c2fe 2a06:98c1:50::ac40:22fe	meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sullivan.ns.cloudflare.com	108.162.195.161 162.159.44.161 172.64.35.161 2606:4700:58::a29f:2ca1 2803:f800:50::6ca2:c3a1 2a06:98c1:50::ac40:23a1	sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.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
104.21.68.117	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.195.9	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	stuk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca21::e 2a01:111:f403:ca38::8 2a01:111:f403:ca48::e 52.101.185.24 52.101.209.153 52.101.91.153 52.101.91.162	mail-dbapr03cu00100.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-matpr04cu00101.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.154.136
🔶 Autoconfig	104.21.68.117

🔷 AAAA Records (IPv6)#

2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:4475	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:c309	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 48ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.117,172.67.195.9 ech=AEX+DQBBKwAgACC7vqx1GBHubgjSB9mof5/b9TeqDWyre+OE326hBl+GdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:4475,2606:4700:3036::ac43:c309

📝 TXT Records#

3 records 196ms

TXT Record
MS=ms60314174
uvmid=525008
v=spf1 include:spf.protection.outlook.com ip4:178.132.238.245 ip4:87.118.67.76 ip4:13.69.124.26 -all

✉️ SPF#

Policy	Record (stuk.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:178.132.238.245 ip4:87.118.67.76 ip4:13.69.124.26 -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 2026-10-15 07:54:49

www	104.21.68.117 172.67.195.9 2606:4700:3035::6815:4475 2606:4700:3036::ac43:c309 (AS13335) (address records, no CNAME)
www vs bare domain	Same network stuk.dk: 104.21.68.117 172.67.195.9 2606:4700:3035::6815:4475 2606:4700:3036::ac43:c309 (AS13335) www.stuk.dk: 104.21.68.117 172.67.195.9 2606:4700:3035::6815:4475 2606:4700:3036::ac43:c309 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.stuk.dk	2QNTVhbolv-cl5-mgXxsRBIUKuRumJxxmDR9Y-q_QM4
TXT	_acme-challenge.stuk.dk	ha1enpfe-PmuBj0dOmIhkDo5WbXa1_Jqw30ZiXupvPI
TXT	_acme-challenge.stuk.dk	l02SuXHcvXqvnqlkwrI8KKCvgIfEV3zpggQm6TDa2qY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

131ms

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

🏷️ SOA#

47ms

Field	Value
Serial	2417225066
Primary NS (MNAME)	meiling.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-14 06:14:12

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-02-16
Expires	2035-03-31 (3086d)

🔗 Same registrant#

1 domain

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
stuk2.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

41ms

43ms

AAAA

40ms

TXT

196ms

CAA

37ms

HTTPS

48ms

TLSA

669ms

SOA

47ms

MTA-STS

77ms

DNSSEC

131ms

SRV

103ms

Total

2279ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 07:54:48	2183ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-14 06:02:31	1179ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-13 04:56:54	1042ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-12 04:39:34 shown	2279ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 15:11:27	896ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 17:30:09	2193ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-10 02:33:44	1802ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-03 08:45:32	4381ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-15 00:37:10	2094ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-13 17:23:41	17360ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-12 21:47:41	11064ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 19:13:10	1632ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 00:26:06	1741ms	2 NS 2 A 1 MX	🔓 Insecure