stuk.dk

Records from scan: 2026-10-15 07:54:48 · 2183ms total · last checked 2026-10-17 10:28 (unchanged)

⬇ 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 134ms

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 109ms

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 150ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	stuk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::20 2a01:111:f403:ca09::24 2a01:111:f403:ca3c::6 52.101.185.114 52.101.73.123 52.101.73.145 52.101.73.153	mail-db7pr03cu00507.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 52.98.253.184
🔶 Autoconfig	104.21.68.117

🔷 AAAA Records (IPv6)#

2 records 141ms

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 126ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.117,172.67.195.9 ech=AEX+DQBBJQAgACCJdMy1aqHkmMy5E2KmnAQl0iznIfX19C2Mwgwwm+BAJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:4475,2606:4700:3036::ac43:c309

📝 TXT Records#

3 records 244ms

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#

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	gmoylAiWeeeRuqMaI4d7tYqNOcfWFQYDGudfNV34vRk
TXT	_acme-challenge.stuk.dk	l02SuXHcvXqvnqlkwrI8KKCvgIfEV3zpggQm6TDa2qY
TXT	_acme-challenge.stuk.dk	lP4semK4xl2OVG2-EkZ_5oCVaTZxLcOpN62LEo4zgv8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

171ms

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

🏷️ SOA#

68ms

Field	Value
Serial	2417521230
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#

134ms

109ms

150ms

AAAA

141ms

TXT

244ms

CAA

121ms

HTTPS

126ms

TLSA

435ms

SOA

68ms

MTA-STS

105ms

DNSSEC

171ms

SRV

218ms

Total

2183ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 07:54:48 shown	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	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