stuk.dk

📜 Historical scan 2026-10-14 06:02:31 · ← 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 45ms

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 39ms

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 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	stuk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca09::22 2a01:111:f403:ca09::24 2a01:111:f403:ca09::a 52.101.103.137 52.101.103.140 52.101.68.29 52.101.91.21	mail-db8pr02cu00106.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr05cu00105.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 → 40.104.116.24
🔶 Autoconfig	172.67.195.9

🔷 AAAA Records (IPv6)#

2 records 33ms

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 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.117,172.67.195.9 ech=AEX+DQBBDQAgACDYH/+WXS1wrXadh4ehcmFEXzASiUoqkBWGwbNlC70XJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:4475,2606:4700:3036::ac43:c309

📝 TXT Records#

3 records 189ms

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	5t1kHHnqLFsUtGs8pzYZVlkmNQPLWht38tsu92wg9Zs
TXT	_acme-challenge.stuk.dk	H4BdFjnwlMiqZmF4P6lAQfFIyQ3cq7JJ0zjJehaPjqc
TXT	_acme-challenge.stuk.dk	l02SuXHcvXqvnqlkwrI8KKCvgIfEV3zpggQm6TDa2qY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

63ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2417357085
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#

45ms

39ms

51ms

AAAA

33ms

TXT

189ms

CAA

47ms

HTTPS

43ms

TLSA

707ms

SOA

44ms

MTA-STS

70ms

DNSSEC

63ms

SRV

66ms

Total

1179ms

🕐 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 shown	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